Hi cabinetcrafter,
There is something on free Nvidia and ATI drivers on the mandriva 2006 errata page, have a look here,
http://qa.mandriva.com/twiki/bin/vie...inux2006Errata
You will find it under this heading, X.org 6.9 issues with free drivers.
IF you run into any problems, and I say IF, because you may not, the link above will probably explain why, and hopefully help you to solve it.
Cheers