It sounds like you badly need a fresh install of Windows 7, unfortunately.

You tried the 32-bit drivers and it said it's not a valid 32x application also?

Are you running the 64 or 32-bit version of Windows 7?  From what I am reading you are evidently running the 32-bit version, so why are you trying to install the 64-bit version of the nVidia Drivers?

so win has default drivers that will let the system get other drivers?

I just mentioned that because by the message you were getting you were trying to install 64-bit drivers on a 32-bit system. That is the only way you would normally get that message.

I've heard of 'overscanning', especially in gaming.  The 26" HDTV I hook my laptop to doesn't have any setting called 'full pixel'. Any idea what else it might be called?

 This is the latest release of Nvidia drivers for your video card( excellent choice  by the way). you say you can't access your Nvidia control panel -- how exactly are you trying to open it - from where??  Go to your menu on the right side open Control panel- from there go to Nvidia control panel to open. click on change resolution. once you've picked out the correct resolution (for your TV highest resolution is best) it should be 1920x 1080 at 60hz or 120hz. your video card will detect and test to see if it is compatible. I had a sony bravia  for 7 years and just recently switched over to vizio 1920 x 1080 120 hz. When your in PC MODE you can change the zoom or wide screen in tv settings - but mostly the video card will dictate the resolution of your screen. The settings for a 120 hz tv have custom settings, but I don't think your tv is 120 hz - if it is the video card will tell you. it sounds like your resolution is too low like the driver is not loaded at all.

http://www.nvidia.com/content/DriverDownload-March2009/confirmation.php?url=/Windows/335.23/335.23-desktop-win8-win7-winvista-64bit-english-whql.exe&lang=us&type=GeForce

I'm running Windows Home Edition 64 bit, Nvidia Geforce GTX660.  hope this will help!!

Every manufacturer calls it something different and puts it somewhere else. And some smaller/older/cheaper sets (like the 32" Sony sets, according to this site) don't provide any option to disable it at all.

In the latter case you have to either use VGA input, downscale it as RND mentioned, or play with the resolution and see if you can find one that it won't overscan on HDMI (such as running a 1366x768 "720p" panel at 1360x768, rather than its full native res or at 1280x720 like a console or cable box would produce--that may require monitor drivers specifically for that set or registry tweaks).

I used to have a Toshiba set that was that way; it had no setting to control it and it would overscan pretty much any resolution other than the above 1360x768. In the end it wasn't worth the trouble since when you did get it to not overscan, it had a weird square screen tear in the upper right corner. For that and other reasons that set has been superseded by a nice Samsung 1080p model that works fantastically.