Glad to see you took the initiative to check the latest drivers.

Getting the picture right on the screen is going to be an expiriment in matching up the resolution of the television (wide, fill, stretch, etc) with the settings being output by your computer.

If you're using a Windows based system, you should be able to adjust the screen by right clicking on your desktop, selecting "properties" and clicking on the settings tab. From there, you can access the resolution for your secondary monitor. Once you've done that, go into the picture settings menu on the television, and adjusting that accordingly.

If your computer's screen is a different aspect ratio than 16x9 (which isn't necessarily uncommon) then the television is simply compensating for that issue by not leaving the default resolution or "streching" or "squishing" the picture just to fit the picture.

Many widescreen movies have the same issues with black bars on the top and bottom. What's happening there is that the director decided to use a different screen size as his or her default canvas. Even widescreen edition movies will still have black bars if that's what the director of the film wanted. Likewise, if the incoming signal is 4:3, regardless of the resolution, the television will put the black lines on the sides.

Keep us posted.