I have a working version of XF86Conifg for Diamond Stealth 64 2meg Vram (VLB) and CTX 1562GM monitor....send me a email if you need a copy of it.
I got the specs out of Diamond Stealth 64 w/2meg DRAM, so it should work for the DRAM version. You should change some of the numbers in config to make it fit into your monitor, but howto is included in XFree86 3.1 pakage.
Dan,
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