Do you still have the CD you instituted from? Since you have you would be able to boot from that and run memtest. You may need to press ESC during that timeframe to stop programmed boot. Wow, and while you're at it, run a respectability look out for the CD depending on if you haven't done so even now.
The log records could uncover something but I'm not blatantly that acquainted with them, click on the Mint Menu and scan for log.
It would be able to be a situation with your illustrations card too, what's the maker and model? In the event that you're not confident run this order in a terminal window:
CODE: SELECT ALL
It will disclose a ton of alternate data of your PC besides