When I log in to Windows xp i get a message from my Nvidia driver!?

Question

I have a Nvidia GeForce 6600

Here is a picture of the message

http://s214.photobucket.com/albums/cc24/biglui55/?action=view&current=untitled-3.jpg

Here is The Info about the computer

http://s214.photobucket.com/albums/cc24/biglui55/?action=view&current=untitled2.jpg

Answer 1

Maybe your power supply isn't large enough to power the card. You may need to buy a Power Supply Unit with more wattage.  

Answer 2

maybe the power supply is getting weaker..

not too sure

Answer 3

did you try overclocking the graphics card? Because that sounds like what happened.