ok , last night i was playing and it seemed to be laggy , i crashed , i tried to get back on , and it said something abou warning etc etc , i had to reinstall planeshift to get it working again (it said something about files missing), now , everytime i try to go on for 5 minutes i crash , i get a windows xp error report that comes up etc etc , every time this happens , ive played for a few hours and i get like 10 or 15 crashes , wat should i do :S
here are my specs
Video Card: Geforce 4 Ti 4200 128mb
Sound Card: Audigy Gamer
Ram: 512mb
Proccecor: Intel Pentium 4 2.0Ghz
I play with all the specs in game turned high (OpenGl Mode , and 31 texture files and both sounds turned on)
I\'ve reinstalled about 6 times and this keeps happening , is it ever gonna end? whats the cure to this sickness/disiese?

If you want , i can take a screenshot of the windows xp error msg that pops up