Hello

I'm new to the forums so please be gentle. I have a problem I hope you can help me with.
I have a Meridian G91A attached to a Panasonic V10 using HDMI with the upscaler set to 1080p PAL.
When I watch the DVD, I get a black border of about 1/2 inch all the way down the right side and along the bottom of the visible picture. It's as though the image is pushed too far to the top right, out of centre. Or maybe the upscaler isn't quite rendering the picture to fill the whole screen.
To check the TV, I connected my SkyHD box into the same HDMI socket of the TV, and all is good. I then tried my PS3 and again the picture is central with no black edges.
I read in the manual about altering picture position after pressing the red button on the MSR, but the option isn't available.
Anyone come across this before? If so, how do you correct it? Its definitely something with the G91A rather than the TV.
Thanks........Dave