Windows 7 display problems

Hello,

I was wondering if anyone else has come across this problem?

I recently upgraded from Vista to Windows 7, my media centre is plugged into the TV via a HDMI cable and my set up has remained the same.

When I configuired the media centre to the TV via the TV settings, my picture does not expand to the full width of my tv and I have a nice black boarder around it?

I have set it to the highest resolution.

thanks for your assistance

Thanks for the reply.

I have a built in video card with the processor, I think it is a AMD.
There doesnt appear to ba any options to change it.

The device adapter in the device manager says ATI Radeon HD 3200 graphics.