Linspire's Live CD does the same thing, and can be made to work correctly by switching to 8 bit 1024x768 and doing an Xwindow referesh (or Quick Restart). The boot sequence is not shown, so I cannot tell what driver is being used.
With this knowledge, I began an install of Debian, as it is the core of Linspire.
Upon informing XGI how uncooperative Dell can be, I got this reply:
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Dear John,
I am so sorry about that. If you really need one, you may want to try V3 Linux driver:
http://www.xgitech.com/sd/sd_download.asp I strongly suggest you to back up all file before you install it. And we are not responsible any system compatibility and performance.
Best Regards
XGI Technology Inc.
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So what-the-heck, I'll try it....once I figure out how.