What version of Maya do you have? As far as I know, the current version has problems with geforce2,3,4 cards with Maya...that's what's in their website. Try updating your drivers...or do what I did and stick to the recommended driver version from other nvidia cards in their list... Before I switched to 43.45, I too had the same problem...my card is geforce4mx
Ipso Facto Meenie Moe... MAGICO!!!