HDTV Resize problems

Up until yesterday I had my computer hooked up to my 32" HDTV by Component cables. And it worked fine.

I installed a new programe, which then said I needed to update my graphics card drivers.

Which I did. So, new graphics drivers from Nvidia.

Now for some reason I have a black border all the way around my screen.

I've tried changing the Resoloution, running the TV optimisation wizard and also manualy altering the "HDTV Screen size" ... Yet none of it worked.

I've maxed the "Desktop Resize" function. But theres still a good inch of black border.

I never used to have this. Any ideas?

I've tried connecting by HDMI cable and it reverts back to a full screen desktop. (Although I dont want to connect via HDMI as theres no audio)

Any suggestions would be hugely aprecaited

Many thanks.

P.S. Hurry please