[Help]i cant extend my display to my tv.

[Woomera]

ok the last time i extended my display to my tv was with my fx5600.but now im using sli 6600le 256 with forceware 81.98,and when i check the radio box of the 3rd display(tv,2nd:2nd graphic card)the monitor gets blank for a sec and then the radio box is still clear.i cant extend to my tv.pleae help.

i even tried troubleshooter and tried restarting the windows.

[Elektrik]

Maybe it is caused different display modes on 1st and 2nd graphic cards

[Woomera]

its funny , i cant even extend it to my second graphic card.its freaking me out.

please,anyone knows the problem?