I recently bought a DVI-HDMI cable to connect my Powerbook (see sig) to my Sony LCD tv. THe Sony's max resolution is 1366 x 768 (pretty much standard for HD-ready tvs). I've been trying to get my powerbook to output that resolution so I get a full screen picture on the tv. However for some reason I keep getting stuck with 1280x720, which leaves some black bars all around. I'm using SwitchResX where I input the resolution as a custom resolution. I then restarted as the software suggests, but it doesn't let me apply the resolution. I don't get it! Anybody have any experience in connecting their powerbook to an hdtv?