DVD/CD Writer Combo problem

[Bazwa]

I have a BTC Combo drive which up til now has been working fine. I recently upgraded my video card to a Albatron GeForce fx5600. The problem now is I can't play movie DVDs. It comes up with 'The tv out port of your video card isn't working correctly' and under more details it says " Can't run copyprotected discs with TV out enabled. What the.......? Considering tv out isn't even enabled and there is no tv connected I'm a bit bemused by this. Anyone have any ideas?