Cannot get Decent Res on LCD

[londonbairn]

I have a Samsung R74 32" LCD. I have it connected via a Component cable to a X800XL. I cannot get a decent resolution (720p) to work. Whenever I set it to this resolution, it only shows part of the desktop allowing me to scroll the rest.

I have tried Powerstrip and CC, but I cannot get 720 to work!

Any suggestions? For some reason, 1152x648 works ok on CC...

 

[londonbairn]

I am waiting for a HDMI-DVI cable to arrive so I can use DVI. It's just for now until it arrives.

 

[londonbairn]

Nothing about it unfortunately in the manual, it says it supports 1360x768 via VESA though.

I am worried by the above poster saying DVI is not supported. Even if I use a HDMI->DVI cable, it will not work through DVI?