windows shuts down to prevent damage

I have got the following error message after my computer suddently shuts down "A problem detected and windows shut down to prevent damage. The problem has been caused by the following file: nv4_disp.dll page_fault_in_nonpaged_ " This has happened twice and I don't know what it is or if it is serious or not. The error message also says that it could be caused by new hardware, and the only new hardware I have is a video card Geforce mx 4000. Could this be the problem and how can i fix it?