ATI 6770
I only became aware I had this issue of flickering white lines near the coast line when I was on an NOE after 2.29 was released. With 2.29 the game also started changing me from UDP to TCP and kicking me out a few minutes after making it into the main arena. Along with that the game would disable all of my advanced video settings. After being discoed out I could log back in, reenable my advanced settings, and play on with no problems. Getting tired of this process every night along with none of the subsiquent updates addressing it. In the catalyst control panel I set everything to "application settings" or performance. Then I disabled all bumpmapping in the game. This stopped the discos but, not the flashing white lines.
Skuzzy mentioned the 13.2 beta drivers addressing a DX9 issue with textures. So I installed those. I've been able to increase some of my catalyst settings from performance back to quality. I still get a more ghost like version of the flickering white lines but, not as starkly pronounced now. And about where the disco would happen my game will freeze for up to 10 seconds sometimes just after I get logged on and at a feild with lot's of action and VOX. Then carry on with no problems. 
With the release of 2.29 p5 my startup screen and the processing screen just after choosing an arena can take twice as long as normal to finaly produce the tower. Sometimes when I first launch Aces High, the startup screen will sit white 20-30 seconds. When I choose offline or online it will sit the same amount of time with a blank window. After that if I have to close out the game then restart it for any reason the expected startup process and time is in force.
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Current video drivers: AMD_Catalyst_13.2_Beta5
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System Information
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Time of this report: 2/19/2013, 15:08:31
       Machine name: BUSTR-PC
   Operating System: Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130104-1431)
           Language: English (Regional Setting: English)
System Manufacturer: System Manufacturer
       System Model: ASUS P5Q Pro
               BIOS: BIOS Date: 02/23/09 21:14:18 Ver: 08.00.14
          Processor: Intel(R) Core(TM)2 Duo CPU     E8500  @ 3.16GHz (2 CPUs), ~3.2GHz
             Memory: 8192MB RAM
Available OS Memory: 8192MB RAM
          Page File: 1544MB used, 14835MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: 120 DPI (125 percent)
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7601.17514 32bit Unicode
------------
DxDiag Notes
------------
      Display Tab 1: No problems found.
        Sound Tab 1: No problems found.
          Input Tab: No problems found.
--------------------
DirectX Debug Levels
--------------------
Direct3D:    0/4 (retail)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)
---------------
Display Devices
---------------
          Card name: AMD Radeon HD 6700 Series
       Manufacturer: Advanced Micro Devices, Inc.
          Chip type: AMD Radeon Graphics Processor (0x68BA)
           DAC type: Internal DAC(400MHz)
         Device Key: Enum\PCI\VEN_1002&DEV_68BA&SUBSYS_C0131092&REV_00
     Display Memory: 756 MB
   Dedicated Memory: 1012 MB
      Shared Memory: 3839 MB
       Current Mode: 1680 x 1050 (32 bit) (60Hz)
       Monitor Name: SyncMaster 2253BW/2253LW,SyncMaster Magic CX2253BW(Digital)
      Monitor Model: SyncMaster
         Monitor Id: SAM037C
        Native Mode: 1680 x 1050(p) (59.883Hz)
        Output Type: DVI
        Driver Name: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver File Version: 8.17.0010.1191 (English)
     Driver Version: 12.100.17.0
        DDI Version: 11
       Driver Model: WDDM 1.1
  Driver Attributes: Final Retail
   Driver Date/Size: 2/2/2013 13:00:38, 1150328 bytes
        WHQL Logo'd: n/a
    WHQL Date Stamp: n/a
  Device Identifier: {D7B71EE2-2BFA-11CF-8577-19E0BEC2C535}
          Vendor ID: 0x1002
          Device ID: 0x68BA
          SubSys ID: 0xC0131092
        Revision ID: 0x0000
 Driver Strong Name: oem36.inf:ATI.Mfg.NTamd64.6.1:ati2mtag_Evergreen:12.100.17.0:pci\ven_1002&dev_68ba
     Rank Of Driver: 00E62001
        Video Accel: ModeMPEG2_A ModeMPEG2_C 
   Deinterlace Caps: {6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                     {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalSt retch 
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY 
                     {6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                     {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalSt retch 
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY 
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
                     {3C5323C1-6FB7-44F5-9081-056BF2EE449D}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                     {552C0DAD-CCBC-420B-83C8-74943CF9F1A6}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                     {6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive 
                     {335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalSt retch 
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY 
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC1,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC2,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC3,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC4,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(S340,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
                     {5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(S342,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
       D3D9 Overlay: Not Supported
            DXVA-HD: Not Supported
       DDraw Status: Enabled
         D3D Status: Enabled
         AGP Status: Enabled
-------------
Sound Devices
-------------
            Description: Speakers (Plantronics GameCom 780)
 Default Sound Playback: Yes
 Default Voice Playback: Yes
            Hardware ID: USB\VID_047F&PID_C010&REV_0100&MI_00
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: PLTGC.sys
         Driver Version: 7.00.0008.2157 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 11/4/2011 16:47:58, 1327104 bytes
            Other Files: 
        Driver Provider: C-Media Inc.
         HW Accel Level: Basic
              Cap Flags: 0xF1F
    Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
 Static/Strm HW 3D Bufs: 0, 0
              HW Memory: 0
       Voice Management: No
 EAX(tm) 2.0 Listen/Src: No, No
   I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
---------------------
Sound Capture Devices
---------------------
            Description: Microphone (Plantronics GameCom 780)
  Default Sound Capture: Yes
  Default Voice Capture: Yes
            Driver Name: PLTGC.sys
         Driver Version: 7.00.0008.2157 (English)
      Driver Attributes: Final Retail
          Date and Size: 11/4/2011 16:47:58, 1327104 bytes
              Cap Flags: 0x1
           Format Flags: 0xFFFFF