Vista - Graphics Card Suddenly Stopped Working?

Hi, I need some help with my graphics card.

My current graphics card is nVidia Geforce 7350 LE which came with the computer that I got not too long ago. I have Windows Vista Home Premium (32-bit), 2GB of RAM, 2.40GHz. So.. it should be compatible as it was working before...

I don't know what exactly happened, but I left my computer on over-night, checked in the morning and realized that my Windows Vista Premium theme changed to Win Vista Basic theme. Then I checked Windows Experience Index to check my base score.. and the result was 1. The Graphics: windows aero and Gaming Graphics dropped from 4+ to 1 all in one night, but other categories were ok. My 3D screen saver is now getting an error "The screensaver can't run because it requires a newer video card or one that's compatible with Direct3D". And I can't play any games either because of this graphics issue.

I looked for solutions in yahoo answers and already tried to reinstall the latest drive from the nVidia official website, reinstalled DirectX9, rebooted my computer, and scanned for any spyware with Norton Internet Security 08. My last solution might be to recover from the Recovery Drive or send it for repairs... but I'm going to lose some files/documents that are important. Not hoping to have to do this..

So I was wondering if anyone can help me out with this problem.
Thanks in advance.

Hi, transpark, and welcome to the forums.

Have you tried running the GPU-Z utility from http://www.techpowerup.com/gpuz/ to see what it reports about your card? It could be that your card overheated, or has over heated to a point of failure....

Instead of recovering (which would fix a software issue, but it seems as if there really is not a software issue), I would find someone who has an old card and borrow it to see if your card has simply died....

Thanks for the reply. I will try the utility when I get back home today and post results.

I think there seems to be another problem, because I'm ramdomly losing disk space in C: Drive.. I had over 270GB of free space just few days ago, but the C: Drive has only 188GB and I think it is still decreasing.. I'm not downloading anything.. Does this have to do anything with the graphics problem? Or maybe... the hard drive has the problem that effected the g. card? Sorry, not too good with tecnology..

I tried the GPU-Z utility and it said that I have the lastest version.
Here are 2 screenshots: