Lines and dots with different colors appear on LCD screen

Hi

My computer has worked fine untill yesterday. I was working with Adobe After Effects and suddently small purple rectangles appeared on the screen. About 30 seconds later the screen went black and i was unable to getcontact with the computer. When i start the computer after what happened i appears light blue and red lines on the screen. Some of the letters during start up is also deformed and pixel like. Sometimes when i start the computer it works fine for about 10 minutes and the screen turns black.

What should i do to fix this problem? Could it be a proble with the video/graphics card?

Any help would be appriciated!

Thanks

Thanks! I don't have another one, but i have tried the computer on different screens and the problem still exists... Yes, it is a nVidia 8800 GTX 756 Mb. Are there many problems like this with the 8800?

Really!!!

It is about 2-3 years old.

Do you know a lot about graphic cards, because i wondered witch card i should buy to replace it. I need a very good card, because i work with 3D programs, Adobe After Effects, etc. (I also play games)

By the way, thanks for answering me so fast

Is there another way to fix the problem than buying a new card?

If you are buying a high-powered card today (as our 8800GTXs were in their day) you'll probably want to look at a 5870 (faster than a 285 $60 more. Almost as fast as a 295 for $80 less). Or a 5850 (pretty much as fast as a 285 for $50 less) Not only are these cards fast, they support DX11.

Here's a list of vid cards ranked in tiers by power. The 5870 and 5850 aren't in there yet, but other card choices are. You'll find the 8800GTX (near the top of the list):

http://www.tomshardware.com/review [...] 404-7.html

5850/70 are ATI.

Thanks Twoboxer!

Is the list up to date? And do you know any very good cards for 3D moddeling, etc? Is nVidia Quaddro good for that?

Nice, do it cost just around 60$!

This may work, it has for some others but, obviously make sure the card warranty has expired before trying it:

http://hardforum.com/showthread.php?t=1421792.

The list linked by Twoboxer is, indeed up to date.
If you have been using the 8800 with your 3D software without problems then another 'gaming' card will be just fine, and a fair bit less expensive than a workstation class card like the Quadro or ATI Fire.

Thanks for the reply Coozie7

The card worked okay, but since I have to buy a new one I might as well buy a better one! Do you recommend the Quaddro cards?

Ok, thanks