XFX 5770 severe flickering at 1080p

Hi,
I have my comp with i7 950 and 58s0 board with XFX 5770 card. When my comp is connected to my 32inch Full HD tv at 720p resolution there is no problem but when i change the resolution to 1080p there is severe flickering and rgb colors on screen. I have the latest drivers installed in my system ie Catalyst Control Center 11.11. Could you please help me out with the solution.

Thanks

Your tv may not be full 1080p, rather than it can receive a full 1080p signal.

Its actual resolution maybe 1920x1060 ect..

Its fine for a tv as it down scales any input from most HD signals and your none the wiser.

But give it a pc signal and it goes haywire.

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