Windows 7: Geforce 8400 RS error

i haev a Geforce 8400 RS error but since widnwos 7 is beta i think it doesnrt work with it so when i use the geforce the computer crashes and i want to do dual monitor casue im a video editor adn dual monitor is easier with video editing so i cant use it and i haev to use my built in video card which doesnt support dual monitor does anybody knwo hwo to fix this problem?

Please revise that, I don't want to have to translate my own language. Can we have some more system specs?

i want to do dual monitor on build 7077 but geforce 8400 GS doenst work on windows 7 i think so i need a fix for this without buyinga new video card

Okay, well, you could just upgrade to the RC (build 7100). Or if you have a 32-bit PC, then you can find a torrent for build 7231, or 7260 when it gets leaked. If you have an x64 PC, then download 7232 or wait and see if a 64-bit version of 7260 gets leaked.

The website that leaks all of the Windows 7 builds isn't working right now, so nobody here can get a hold of 7260 right now.