ok, sorry to post so many in a row, but i went into the troubleshooter and it said to try lowering my hardware acceleration by going into display properties, settings, advanced, troubleshoot. i brought the bar all the way down to hardware acceleration off and ran the Test DirectDraw and it tested fine with no problems. then i moved it up one notch and it worked everytime i tested it untill the hardware acceleration was on full, then it happened again. i brought it back down one notch, tested it again and it was fine. i tried going into a CS Source server, but the problem was still there. maybe the Enable Write Combining box being checked has something to do with it too?