Got a few troubles recently and I'm clueless as to what it is, so as always I thought I'd come looking for help. 

Problem 1: While playing Aces High randomly I will see the screen flick and then the plane acts like it has a "White noise" filter applied.  Blue/white pixels (the color of the sky normally) will flash in random spots and in large quantities (about 60% of the plane has this "noise" over it).  The pixels will flash once and move so it's not a constant image of noise.  My Frame-rate gets cut in half while this is going on.  However if I look away from the plane everything is fine, but as soon as I look back it's there.  This has only happened in the WWI arena and it's only happened 3 times (once a month ago and twice yesterday).  Clueless as to what is causing this.  Also, this persists onto the desktop until I restart computer.
When gaming I have the following open/running in the background: Windows Media Center, Threatfire, ESET NOD32, Logitech Mouse/keyboard settings and Gamer profile and EVGA Precision.
Problem 2: This isn't in Aces High but it's very annoying to say the least.  In DiRT 2 I will randomly get a BSOD when doing anything from sitting at the menu to driving a race.  I have run Everest in the background to keep track of every possible sensor on the GPU/CPU/PSU and only ever get a warning on occasion about my GPU hitting 61C (CPU warns at 50C, GPU at 60-63C, and if any PSU voltage goes beyond +/- 5%).  I have seen at least 2 different types of BSOD's from this; one was a typical one that I barely caught before it reset and the other one sat there and said something about "Volmgrx.sys" and "atapi.sys".
When gaming I have the same things running as AH with the exception of WMC (has crashed with and without it open).
I have run ESET/Threatfire/Malware Bytes and Memtest 86+ V4.10 and nothing was found, no errors.
Specs are as such:
------------------
System Information
------------------
Time of this report: 5/25/2010, 14:47:46
       Machine name: XCELSIOR-PC
   Operating System: Windows 7 Ultimate 32-bit (6.1, Build 7600) (7600.win7_gdr.100226-1909)
           Language: English (Regional Setting: English)
System Manufacturer: BIOSTAR Group
       System Model: A785GE
               BIOS: Default System BIOS
          Processor: AMD Phenom(tm) II X2 555 Processor (2 CPUs), ~3.2GHz
             Memory: 2048MB RAM
Available OS Memory: 2048MB RAM
          Page File: 859MB used, 2211MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: Using System DPI
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7600.16385 32bit Unicode
------------
DxDiag Notes
------------
      Display Tab 1: No problems found.
        Sound Tab 1: No problems found.
        Sound Tab 2: 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: NVIDIA GeForce GTX 260
       Manufacturer: NVIDIA
          Chip type: GeForce GTX 260
           DAC type: Integrated RAMDAC
         Device Key: Enum\PCI\VEN_10DE&DEV_05E2&SUBSYS_12553842&REV_A1
     Display Memory: 1649 MB
   Dedicated Memory: 881 MB
      Shared Memory: 767 MB
       Current Mode: 1680 x 1050 (32 bit) (59Hz)
       Monitor Name: Acer LCD Monitor X223W
      Monitor Model: Acer X223W
         Monitor Id: ACR0009
        Native Mode: 1680 x 1050(p) (59.954Hz)
        Output Type: DVI
        Driver Name: nvd3dum.dll,nvwgf2um.dll,nvwgf2um.dll
Driver File Version: 8.17.0011.9713 (English)
     Driver Version: 8.17.11.9713
        DDI Version: 10
       Driver Model: WDDM 1.1
  Driver Attributes: Final Retail
   Driver Date/Size: 3/16/2010 02:51:59, 9386088 bytes
        WHQL Logo'd: Yes
    WHQL Date Stamp: 
  Device Identifier: {D7B71E3E-46A2-11CF-037E-5E321FC2C535}
          Vendor ID: 0x10DE
          Device ID: 0x05E2
          SubSys ID: 0x12553842
        Revision ID: 0x00A1
 Driver Strong Name: oem24.inf:NVIDIA_SetA_Devices.NTx86.6.1:Section003:8.17.11.9713:pci\ven_10de&dev_05e2
     Rank Of Driver: 00E62001
        Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C 
Deinterlace Caps: 
too much to fit here       D3D9 Overlay: Supported
            DXVA-HD: Supported
       DDraw Status: Enabled
         D3D Status: Enabled
         AGP Status: Enabled
-------------
Sound Devices
-------------
            Description: Speakers (SB Audigy)
 Default Sound Playback: Yes
 Default Voice Playback: Yes
            Hardware ID: PCI\VEN_1102&DEV_0007&SUBSYS_100A1102&REV_00
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: P17.sys
         Driver Version: 5.12.0001.2020 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 10/16/2009 03:11:56, 1168896 bytes
            Other Files: 
        Driver Provider: CREATIVE
         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
            Description: Digital Audio Interface (SB Audigy)
 Default Sound Playback: No
 Default Voice Playback: No
            Hardware ID: PCI\VEN_1102&DEV_0007&SUBSYS_100A1102&REV_00
        Manufacturer ID: 1
             Product ID: 100
                   Type: WDM
            Driver Name: P17.sys
         Driver Version: 5.12.0001.2020 (English)
      Driver Attributes: Final Retail
            WHQL Logo'd: Yes
          Date and Size: 10/16/2009 03:11:56, 1168896 bytes
            Other Files: 
        Driver Provider: CREATIVE
         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


Thanks for any help/ideas. 
