I'm using the ATi 4670 HD, with the latest driver downloaded off their site about 3 days ago, If i remember right it is driver ver 9.11. I am indeed using an LCD TV, it's a Samsung SyncMaster225MW. The driver has been installed for my monitor, when I load the computer up, it has reset the res of the monitor is also reset to 'Default VGA' with the res of 1024x768. I can either click 'detect' or unplug the cable from the back of the card and back in and it will identify my "SyncMaster225MW Analogue" with my native 1680x1050 res.
I have to cables and both have produced the same result, a standard vga to vga and also a dvi to vga. I do not have a dvi to dvi.
Any help is appreciated.
*Edit updated typo in res and filled out all my specs under my profile