Video Memory is correct in game
Can you guys with the stutters provide us the following info: 
1-Processor type (please specify single or multiple core)
AMD 939 Athalon 64 4000+.. 2.85 Single
2- Are you running in compatibility mode. 
NO
3- Amount of video memory.
256mb
4- Amount of system memory.
2gigs
Windows 98/SE compatability mode. Everything in NVidia Control Panel set to application controlled, and everything turned off in game preferences with 512 Max texture Size. Getting 70-75 fps until I pan around then screen freeze and "stutters". DXINFO below:
System Information
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Time of this report: 7/29/2009, 02:20:28
       Machine name: JOE
   Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.090206-1234)
           Language: English (Regional Setting: English)
System Manufacturer: To Be Filled By O.E.M.
       System Model: To Be Filled By O.E.M.
               BIOS: BIOS Date: 05/30/08 14:59:54 Ver: 08.00.15
          Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 5600+,  MMX,  3DNow (2 CPUs), ~2.9GHz
             Memory: 3328MB RAM
          Page File: 998MB used, 4212MB available
        Windows Dir: C:\WINDOWS
    DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
     DxDiag Version: 5.03.2600.2180 32bit Unicode
------------
DxDiag Notes
------------
  DirectX Files Tab: No problems found.
      Display Tab 1: No problems found.
        Sound Tab 1: No problems found.
          Music Tab: No problems found.
          Input Tab: No problems found.
        Network Tab: No problems found.
--------------------
DirectX Debug Levels
--------------------
Direct3D:    0/4 (n/a)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (n/a)
DirectMusic: 0/5 (n/a)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)
---------------
Display Devices
---------------
        Card name: NVIDIA GeForce 9800 GTX/9800 GTX+
     Manufacturer: NVIDIA
        Chip type: GeForce 9800 GTX/9800 GTX+
         DAC type: Integrated RAMDAC
       Device Key: Enum\PCI\VEN_10DE&DEV_0612&SUBSYS_08A219F1&REV_A2
   Display Memory: 512.0 MB
     Current Mode: 1280 x 1024 (32 bit) (75Hz)
          Monitor: Plug and Play Monitor
  Monitor Max Res: 1600,1200
      Driver Name: nv4_disp.dll
   Driver Version: 6.14.0011.9038 (English)
      DDI Version: 9 (or higher)
Driver Attributes: Final Retail
 Driver Date/Size: 7/14/2009 13:54:00, 5842816 bytes
      WHQL Logo'd: Yes
  WHQL Date Stamp: n/a
              VDD: n/a
         Mini VDD: nv4_mini.sys
    Mini VDD Date: 7/14/2009 13:54:00, 7741664 bytes
Device Identifier: {D7B71E3E-4552-11CF-0F59-A92803C2CB35}
        Vendor ID: 0x10DE
        Device ID: 0x0612
        SubSys ID: 0x08A219F1
      Revision ID: 0x00A2
      Revision ID: 0x00A2
      Video Accel: ModeMPEG2_C ModeMPEG2_D