Nvidia Overscan setting wont save. Why??

[gizmoy2k]

Hi

I was trying to set up a media box for friends last night, its a Sony one with a Nvidia 6600 gfx card, I updated the drivers to the latest ones from the nvidia website, It is running MCE2005

Anyway, the whole point of this is that they were haveing Overscan issues with the Start menu and icons going off the side of the screen. The are using a hdmi cable at 720p. I have used Nvidia drivers to correct this on other machines before but not this time !

I get to the adjustment part with the 4 arrows in the nvidia logo and adjust the size of the picture, However when i click apply i get put back to the deskptop but no new settings/resolutions is available for me to select.

Got too late last night and had to give up, Its like someting is stopping the setting being transfered. Tonight i will uninstall norton from the hunk o junk incase its protecting the registry or something

Only other thing i can try is manual settings but i always got errors saying they wouldn't work, Since then I read somewhere that the resolutions have to be divisable by 8 so will retry........

Any other ideas, this is driving me nuts

Thanks