I think your 64 mb might not be good enough to run MTW at its peak settings I think it needs 128mb of ram. is that intel integrated video? I had the same thing on my Dell 4500s and it only has 16mb capability I was able to run MTW limited on low sound and unit settings, you can try and fiddle with the settings uncheck the hardware mixing box and put sound and unit settings to lowest and if you do not have it get the MTW game patch it might help also.