Plasma HDTV as computer moniter problem

I just bought a Panasonic TC-P42S1 to use with my ps3 and computer and i'm having a hard time getting it to look right as a computer moniter. I had been using a 720p Samsung and it looked just fine at 1360 x 768 but this one looks weird at every resolution i've tried. The text looks weird and the screen doesn't fill up the sides of my tv, there's two little black lines on either side whcih disapear if i zoom in with the tv remote but in full screan it's just not quite full. I'm not havning any issues with my ps3 or while watching cable, the tv is plugged into my Radeon HD 4870 X2 with an HDMI adapter.

Thanks for the help :)

Oh and I've gone through all the tv's settings and nothing fixes this, i guess it's possible that i missed something though.

Your problem is underscanning. Your ATI card, when running with HDMI, defaults to underscanning the display for some wierd reason, which gives it those black bars around the image.

You can fix this by going into Catalyst Control Center and in "Desktops & Displays" right click the picture of the TV in the bottom left corner (not the big rectangle in the middle, took me ages to figure this out) and click "configure." In here there should be a section where you can adjust the borders by moving a slider to the right.

That should fix your problem.

There should be a wide Screen or Full screen option when using it as a PC moniter. I had the same issue as you did. Make sure to use your TVs "native" resolution or the picture won't be very good. Here's a pic of my HDTV setup as a moniter. After getting it working correctly it was great.

OK so i got the TV to show up in the bottom left by clicking Force TV Detect under "If my device is not detected", but right clicking it doesn't bring up any options.

If I hover the mouse over the tv it says TV, Disabled. How do i enable it?

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