I used 128 x 720 previously with my 720p 32" LCD. I am using Core2Duo, Gigabyte 965P-DS2, DDR2 4GB Ram and 650 W Power Supply.
When I installed drivers on Windows 7 it would be to zoomed and some parts of the screen would be cut off at 1280 x 720 e.g. I can't see the taskbar. I use the resize desktop tool to make it 1172 x 668 which isn't ideal but even then text looks fuzzy and everything is pixelated. Also the colours are way off.
It can't be the screen because I tested it with my new 46" LED Samsung 1080p and it had the same issue. Also the T.V settings must be right if it works on my previous Graphics Card and when I play on my 360 it looks perfect as well.
Whats the solution?