GW Crashing Comp and Graphics Errors

Hello. I've been an on & off player of GW for 3 years now and starting roughly a month ago I've never had problems like I'm having now with crashing and graphics errors. What I can describe is the most commonly happening graphical glitch is lots of flickering of black on random objects/textures. Here's pictures of some of the more severe graphics problems:

http://i39.photobucket.com/albums/e1.../graphics1.jpg - Character is graphically ill.

http://i39.photobucket.com/albums/e1.../graphics2.jpg - Too much to explain.

http://i39.photobucket.com/albums/e1.../graphics3.jpg - Look what Dunkoro is saying.

http://i39.photobucket.com/albums/e1.../graphics4.jpg - Kappa is a 25 energy spell with bizarre explanation.

http://i39.photobucket.com/albums/e1.../graphics5.jpg - Text box is funky looking.

http://i39.photobucket.com/albums/e1.../graphics6.jpg - Some odd scattered text on the screen that makes no sense.

Now this is happening all the time with just very random effects and not only that but GW is crashing my computer. It can happen in less than a minute and sometimes it takes 2 hours. There is no way I can PUG or do anything w/ people anymore due to all these crashes so I have been left to play solo which is pretty depressing. Something else I'd like to mention is that on World of Warcraft I don't get these graphical problems but the game still crashes my computer after a while.

Some of the things I've tried to do to cure all of this:

- Update Video Drivers
- Clean out Registry
- Tweak Video Card settings in various ways (I have a GeForce 7100 GS)
- Clean out inside of computer case
- Reinstall Guild Wars
- Run Guild wars on the lowest possible graphics settings
- Defragment

None of this has helped alleviate the problem at all. Only thing I can think that is the problem is my video card. If anybody has run into this problem and knows what the solution is so I don't have to go out and buy a new video card I would greatly appreciate the help. Thanks a lot.