I have recently purchased a 1270q using a HTPC with a Redeon VE video card (latest drivers). Great picture using winDVD and dscaler for VHS tapes, but the projector only seems happy using 800 x 600 at 60hz refresh. I know it is supposed to do more than that. Any other resolutions or timing combinations seem to cause a shrunken, stretched, contorted, flashing, jumpy, nervous looking picture(have I used enough descriptive words?) What am I missing? Is there a PJ setting that needs adjustment to get the projector to consider other resolutions without getting flaky? It is rock-solid at the 800x600 @60hz setting. I have not found any thread material on this specific problem. Thanx to all.