I have an ASUS B53J, running 10.04. It randomly crashes, rather frequently (after <100 running hours). I'm not sure how to begin troubleshooting a problem like this. Is there something I can do to find out what, at a very deep level, is failing, so that I at least no what needs fixed? Right now, all I can do is to force it to shut down, so I don't know how I'm supposed to learn anything from this. Is there a system log for crashes or something?