Dual monitor resoulution problem

view story

http://askubuntu.com – I am using Ubuntu 12.10 on my HP G7 laptop with a dual monitor setup. I have the laptop monitor & the other display is a 36" Sanyo HDTV. I cannot change the resolution on the 36" using the compizconfig tool OR the display tool under settings. If I set the resolution to anything except 1280x720 on this monitor, it goes dead and I get "no signal". I have looked & looked but cant find an answer to this! (HowTos)