Originally posted by SpyCatcher
Additionally the nv4_disp.dll error is created when video drivers are not installed correctly by the user.
This is just one of the causes of this error, to believe that it's the only one is wrong.
When I was having this problem I tried 3 different video cards with 4 different versions of drivers (1 from MS and 3 from NVidia) all with the same blue screen of death referencing the nv4_disp.dll. I also tried removing DirectX completely and reinstalling with no success. No matter what card or driver I used I still received the nv4_disp.dll error and lockup. This ruled out the possibility of it being a video card problem or a driver problem.
I had finally reached a point to ruling it a defective motherboard, when I pulled out the manual for it I noticed it used the VIA chipset. A quick visit to the site and a download later I was up and running like a champ.
There are many variables to consider when it comes to solving a nv4_disp.dll error, not just incorrectly installed video drivers. For all we know we can both be wrong in this
specific instance. Reading this thread just made me think of the trouble it cause me and I registered just to post my suggestion.
I'm just trying to help.
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