I got my stuff moved to a new bedroom and now I'm no longer using my old CRT monitor. Instead I'm using my 26 inch plasma television to double as TV and monitor. Everything is nice and huge. Playing Halo on this would be nuts.

However I have encountered a situation which Google has not yet easily answered. For TV use, the brightness is just fine. But as a computer monitor, it is really bright. I could lower the brightness of the TV but that would also affect its usage as a stand-alone TV. Any help there?

Also, its default mode as a PC monitor is VGA - 800x600. I would like to get my resolution bumped up to at least 1024x768. Would having these different numbers cause issues?

Thank you once again.