Video Streams keep failing in Vegas

[and]

During a render, I can watch a few frames occasionally flash purple, and then at about 1% done it does fails regardless of whether the source video is adjusted to match output... I can;t find any graphics accelleration function to turn off or other fix:


Extra Information
File: C:\Users\Kava\AppData\Local\Sony\Vegas Pro\11.0\gpu_video_x64.log
File: C:\Users\Kava\AppData\Local\Sony\Vegas Pro\11.0\dx_video_grovel_x64.log
File: C:\Users\Kava\AppData\Local\Sony\Vegas Pro\11.0\svfx_video_grovel_x64.log
File: C:\Users\Kava\AppData\Local\Sony\Vegas Pro\11.0\dx_grovel_x64.log
File: C:\Users\Kava\AppData\Local\Sony\Vegas Pro\11.0\vst_grovel.log
File: F:\Johannes + Jared\Jared and Johannes\Johannes and Jared editing 27 Done Editing.veg

Problem Description
Application Name: Vegas Pro
Application Version: Version 11.0 (Build 521) 64-bit
Problem: Unmanaged Exception (0xc0000005)
Fault Module: C:\Windows\system32\nvcuda.dll
Fault Address: 0x000000000694E140
Fault Offset: 0x000000000027E140

Fault Process Details
Process Path: C:\Program Files\Sony\Vegas Pro 11.0\vegas110.exe
Process Version: Version 11.0 (Build 521) 64-bit
Process Description: Vegas Pro
Process Image Date: 2012-01-16 (Mon Jan 16) 23:51:16

[and]

Graphics card is
About Your GPU

GeForce GT 240

Your GPU Supports
3D Vision

PhysX CUDA






Your GPU does not support
Info >DirectX 11
Info >SLI
Your core specs


Cores
96

Memory
1024MB

Graphics clock
550MHz

[and]

Just re-installed Driver version 285.62 "clean install" to reset all settings.

[and]

Details in pics attatched

[aedipuss]

when you render set vegas to only use the cpu. your video card is the problem, might be overheating or has bad ram.