Widescreen Gaming Forum

I have HIS ATI Radeon HD4850. I plug my computer up to my Sony Bravia (Max Res 1360 x 768) using the HDMI adapter (I plug this into my DVI port) and a HDMI cable. I would like to use the 16:9 resolution of 1152 x 648 or something very close. I have Catalyst Driver V. 8.12. I have Catalyst Control center but this doesnt solve my problem. I Also have Powerstrip and ATI Tools Tray. The Powerstrip tutorial here does not work as even when I restart the computer the new resolution is not there in Display Properties>Settings. In ATI Tray Tools, I cannot even find a way to access custom resolutions.

How do I get the resolution. And is there any other third party software to help me do this. Alternatively please tell me how to do it using the software I already have