Tim,
I built a computer last year using an Athlon with a Gigabyte motherboard. I had troubles with Fractint - with any SVGA mode the computer would hang after the completion of the image. I always assumed this was an Windows XP issue.
Today I tried Fractint with freedos on the same computer, with the same results. So apparently it's an incompatability bgetween fractint and my compuiter. Truecolor, 320x200, diskvideo, and even tweaked modes work. SCGA modes fail, and only after the image completes.
This behavior appears to have nothing to do with recent versions.
Has anyone else had trouble with Athlon?
I just built a 2.4 GHz Celeron. It has an Intel motherboard with built in video. Fractint works fine under Win98, but under WinXP it has problems. At higher resolutions, no image appears on the screen. But, if you save the non-image and look at it with a graphics file viewer, it looks just fine. I've been through all the XP compatibility settings with no improvement. The makefcfg routine returns all the applicable video modes and Fractint recognizes that these modes are available. One possible cause could be that we might be discarding the upper portion of the video address returned by the VESA video functions. This was all after I updated the XP video drivers for this board. Before the update, Fractint produced a garbled screen image in these video modes. Try updating the video drivers for XP.
Hmm, maybe I need to look at bios settings.
Bios settings should have no effect. Jonathan