What is the gfx card in question? you might want to reinstall the latest drivers for the card, a trip to either the ATI or nvidia website will be needed for that. If it is an ATI card uninstall then reinstall the .net framework 1.1 it can be gotten from the MS website.
Maya is a real pain though, what are you wanting to do with maya, for 3d modelling in general its isnt very good 3ds max is better, and then you can transfer models into maya for whatever you want them for, if you want some good maya info look up a game mod called PDS for homeworld 2 those guys use maya for the models alot and are usually willing to help and have alot of useful guides for maya and converting formats. Those are the only guys i know of that use maya that much like i said its a pain to use and just to get working in the first place.