Computer crashes when I connect my iPod to iTunes?

My 30g video iPod got wet awhile ago when I was floating the river, it was working and then all of a sudden died. It worked fine when I listened to it, but nowadays it seems to skip. When I try to connect it to my computer iTunes will not recognize it, sometimes the computer will be given a blue screen of death. I’ve brought it to Apple and the employee said he could not find out what the issue was.