Panasonic CT34WX15 - Help?


Has anybody had any experience getting the Panasonic CT34WX15 (34" Widescreen HDTV) to cooperate with a Mac(G4/450 AGP in this case) using a Radeon 8500 to the HDMI port with a DVI-HDMI cable. I cant seem to get any resolutions to cooperate except interlaced ones (which flicker horribly), or 720x480 which looks huge. When I try other timings, I get scrolling blurred images. I know this has been a popular TV to buy, but I have been looking for about a week for some DisplayConfigX timings to try to no avail. I cant even find Powerstrip timings in the PC forums to go off of. Can anyone help?