Thanks for the advice. I may try editing each game, as painful as it may be. First I'll try reinstalling the latest Direct X and cross my fingers. This is what I get for putting a cheap box (e Machines) in my cabinet, albeit it seemed to have enough hardware (900 MHz, etc.), and I bought it refurbished just for this purpose. I may have to sacrifice my HP Pavilion, as much as I don't want to.
Funny, I thought building the cabinet was going to be the hardest part, but issues like these are turning out to be more frustrating.
btw, your Mame32 analog version is the best. I've got my steering wheels and pedals (including my analog Pole Position pedal) working flawlessly. Thanks a million for the suggestion.