Well, first thing I would do is check the compatibility of your video card with Maya. I'm not familiar with the Hercules line. Here's a link to Alias' compatibility chart for Maya 5.0. Look to see if your card is listed or if it has any problems.
https://www.alias.com/eng/support/may...ya_50_win.html
Dave Baer
Professor of Digital Arts
Digital Media Arts College
Boca Raton, Florida
dbaer@dmac.edu