leavy

I need to say that everything was working dandy until about 2 days ago when all of a sudden my computer pauses when I try to play any windows media files. So I ran dxdiag and when i do the directdraw tests it freezes the same way. I have to do a total re-boot. Does anyone have any suggestions. Will re-installing Directx help. Its strange because it worked fine before. Please help.. sys specs PII450 tntII ultra 128 Megs Ram Win2k RC3