[Fractint] Fractint with AGP??

Has anyone successfully used Fractint with an ATI Radeon 7500 AGP video board, or for that matter, with any AGP video board? I have problems - computer hangs after the completion of an image in any SVGA mode (but not native VGA or tweaked modes). I swapped out the ATI board and put in an old PCI SVGA board I had lying around, and the symptoms went away. (Problem is not OS related, happens under Windows or DOS). Tim Wegner