Game related help with crashes!

[NewbieBuilder]

Hi folks

K inot sure this is right place but hopefully it is.

This help is regarding the Game EVE Online.
Before i installed SP2 on my comp i could run 3 clients of this game with no problems what so ever.

Now i can only run 2 clients of EVE and the comp crashes i can play for about 2 hours then get a crash and i dont know why its doing this.

Anywhere i can see whats causing this or if anyone knows anything?

i hear crackling in my speakers while playing if thats any help.

OS is Win XP obviously but if you need to know any other information then i can reply with it.

cheers