Notebook display skewed with line

I'm posting this in the graphics card section of the forum because I believe (though I sincerely hope I'm wrong) that my NVIDIA GeForce graphics card has either fried or become faulty in some way.

Whenever I boot up my notebook (I had it custom-built from ibuypower), the display is stretched to the right and a thick line of what looks like dead pixels appears 1/3rd of the way up the screen, and the screen's display repeats from the top underneath the line. My resolution used to be 1600x900 with many different options to choose from, but it's now listed as "Digital flat panel" with 1024x768 60Hz selected, and there is only one other aspect ratio to select, 800x600.

This isn't an issue with the actual screen itself, because the exact issue has arisen about a month ago, and restarting the computer several times fixed the problem. It happened a second time, and booting the computer with the Base Video setting checked seemed to fix the problem. Now it's happened again, and after countless restarts with Base Video checked and unchecked, and with the latest NVIDIA graphics drivers installed, the computer stays like this. Changing the resolution only serves to screw up the screen more.

Has my graphics card overheated or been knocked out of place somehow? Or is there a driver I can download that will fix this?

Thanks very much for your time!!

Thanks for the reply!

I'm in college currently, so I'm unable to connect to an external monitor.