Hello,
I was doing some testing on my Win7 64 Quad Core PC and all the ROMS I tested worked fine. I moved them over to My WiXP 32, Athon 3000,. 2.0Ghz and Nvidia Video Card(I think it is 256 but could be 128) and games like MK1, MK2, WWF WWF Wrestle Manios( around 99 release date) all look horrible. I know it seems like it would be a PC issue but I used to be able to play Battle Field 2 on Full Quality fine on this PC back in the day so surely it can handle 1990 Arcade titles, right?