Hi, I suspect that someone was messing around with my computer. Is there a log that would show what time was the computer turned on or last on etc.? Anything that would back up my theory that someone was using it when i wasn't here? Thanks
The system log (console utility) may show activity that could point to someone else using a machine, especially if there was login/logouts. There are a number of other log files there.
if you are terminal friendly... Have a look in the /var/logs directory... All sorts of logs in there including system.log which will have timestamps on them.
Best to use the "more" command instead of opening any of the files!