nvlddmkm.sys error

[PowerDemon]

Fault bucket X64_0x116_TdrBCR:2_Tdr:2_IMAGE_nvlddmkm.sys, type 0
Event Name: BlueScreen
Response: http://oca.microsoft.com/resredir.aspx?sid=3321&Bucket=X64_0x116_TdrBCR:2_Tdr:2_IMAGE_nvlddmkm.sys
Cab Id: 0


Any ideas how to fix this error? i have the newest drivers from nvidia 163.75.

Vista home premium 64bit.


Also when i try to change my desktop resolution my screen goes like this:

It does this when i try to start playing a game and the resolution isnt the same as the desktop also.

 

[PowerDemon]

Well i guess no one knows, but ive since found out that if i change the desktop bit depth to 16 instead of 32 then i can change resolutions with no problem and games start up no problem, just the desktop looks crap on 16bit.