This is weird. I know about LW, I shouldn't be having problems, but I am.

All of a sudden, starting about two days ago, whenever I leave LW on for an extended period of time, it quits. I don't know why. I mean, I'm supposed to, and I do, leave it on for periods of days, to get established in the network, share, and be a UP. But all of a sudden, it's been quitting. I uninstalled the program, deleted preferences, everything, and reinstalled it, the problem is still there. I haven't modified my computer. Any ideas? I'm prolly going to run norton later, maybe some file is corrupted or something.