Can you post your TrainzDiag results (C:\Program Files\Auran\TRS2006\Bin\TrainzDiag.exe) to here?
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Test Results
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CPU Speed : ~2.60 GHZ : Passed
System Memory : 1023 MB : Passed
Hard Drive Space: 86.45 GB Free : Passed
OpenGL : Version 2.0 : Passed
DirectX : Version 9.0c or later : Passed
Desktop Mode : 32 bit colors : Passed
Card Type : GeForce 6600/AGP/SSE2 : Passed
Video Driver's Age : 3 months old : Passed
AGP Memory : 54MB Free : Passed
Video Memory : 256MB : Passed
Stencil Buffer : 8 Bits : Passed
Multi-Texturing : 8 Textures : Passed
Texture Compression DXT : Passed
Texture Combiners : Passed
Vertex Shaders : Version 3.0 : Passed
Pixel Shaders : Version 3.0 : Passed
Bump Mapping : Passed
Spherical Environment Mapping : Passed
Cubic Environment Mapping : Passed
Vertex Buffers : Passed
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Extra Details Return from Tests
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CPU Speed : ~2.60 GHZ : CPU Speed : ~2.60 GHZ
System Memory : 1023 MB : System Memory : 1023MB (555MB free)
Hard Drive Space: 86.45 GB Free : Drive C:\ : Total 111.80 GB Free 86.45 GB
Drive D:\ : Total 19.08 GB Free 12.61 GB
OpenGL : Version 2.0 : OpenGL : Version : 2.0.3
Vendor : NVIDIA Corporation
Card : GeForce 6600/AGP/SSE2
DirectX : Version 9.0c or later : Driver : nv4_disp.dll
Description : NVIDIA GeForce 6600
Product : 6 Version : 14 SubVersion : 10 Build : 9371
Driver not WHQL signed
Desktop Mode : 32 bit colors : Desktop Mode : 1024x768 with 32 bit colors
Video Driver's Age : 3 months old : Contact your card manufacturer at
www.nvidia.com for the latest drivers.
Card's driver date is Sun Oct 22 12:22:00 2006
File Version :6.14.10.9371
File Description :NVIDIA Compatible Windows 2000 Display driver, Version 93.71
Product Version :6.14.10.9371
AGP Memory : 54MB Free : Total AGP Mem : 54MB
Free AGP Mem : 54MB
AGP Enabled = true, AGP Exists = true, AGP Status = Enabled
Video Memory : 256MB : Total Video Mem : 256MB
Stencil Buffer : 8 Bits : OpenGL stencil bits : 8
DirectX stencil bits : 8
Multi-Texturing : 8 Textures : OpenGL texture count : 16
DirectX texture count : 8
Vertex Shaders : Version 3.0 : OpenGL vertex shader : Version 3.0
DirectX vertex shader : Version 3.0
Pixel Shaders : Version 3.0 : OpenGL pixel shader : Version 3.0
DirectX pixel shader : Version 3.0
HTH
Dave