So I'm using a radeon 9500 with the ATI dongle, and I'm connecting to a mitsubishi wt-42311 16:9 hd monitor. Now I've read Karnis' custom timing guide, and I have the process down for getting the custom resolutions to take, but I can't seem to figure out how to get the scan rate, refresh rate, and # of lines to lock in. Every time I try to use the tab method, I get something totally out of sync. And once, I got the scan rate locked in at 33.75, but the refresh and lines on the screen weren't anywhere near the values specified in the guide. Also, along the same lines, when the resolution is jacked up to i believe 1990X1080i, I'm getting scan line twitter (for lack of a better term) so bad that it's distracting. Can anyone either show me the right place to find the answer, or help me out a little? I'd appreciate it. Oh, and just as a p.s. the mitsubishi TV that I have only supports 480i, 480p, and then 1080i. At least that's what mitsubishi says. Is that odd?