[SLviewer crashes on login phase]

Thanks so much! it's working ! It's alive ! i'm really greatful for the help

[SLviewer crashes on login phase]

oh okey.  thanks for the response. Is it an easy way to reverting the drivers ?

[SLviewer crashes on login phase]

Hi. for 3 days ago, my Sl started to crash on login. at the "dowloading clothes" phase my screens gets black for a second. after that a error message appears with the content "The NVIDIA OpenGLdriver lost connection with the display driver and is unable to continue. The application must close. Error code:8" 
also. it appears a smal windows message in the corner wich says : " Graphics driver stopped responding and has recovered, Graphics Driver NVIDIA Windows kernel mode driver, Version 280.26 stopped responding and has recovered. "

I've tryed to unistall SL completly, update my Video drivers. and also tryed on my laptop. the funny thing is that the same problems is there aswell.

I'm using an updated version of SL viewer. It's wierd because it have worked properly befor al this. 
some hardware/software info if needed. 

Intel Core i7 940.
6gb ram
win7 64
2x GeForce GTX 460
P6x58D-E motherboard.

would be happy for some good answers to this :) wich isn't that complicated .