Two wierd things are happening to my computer:
1) It has taken to spontaneously restarting itself. There is no warning at all, no blue screen of death or anything. Just *zap* and it resets. I have no idea why its doing this.
2) It make a very odd grinding noise when it is starting up and it dies down to a quiet grind that continues the whole time the computer is on.
Could these problems be related? I hope if something has to be fixed its not too expensive.

If anyone has any ideas as to what could be causing these problems, you comments are welcome.