Problem with unplugging all other connections, cause I tried this first, is that you cant see anything when you plug the tv in. It stays black screened. Thats why I hooked my other lcd up to the vga port and then the tv up to the dvi and tried to set it up that way. I went to detect tv setup for clone mode. Then it had a greenish looking picture, went back into the tv settings and set it to 720p HD and it worked, but was oversaturated in green. I set res and refresh rate to its native display settings and still green. Then I restarted and now I cannot for the life of me get the damn thing to detect again.