I've used windows for years and dealt with their on going troubles. I recently had my laptop crash after installing a microsoft update and decided to try linux and see how I make out. I bought a remanufactured dell latitude d610 with Ubuntu 12.10 pre installed. Got it yesterday. Only had it couple hours. Just checking out programs. The computer froze up. I let it set hour or more and nothing. I powered off with power switch. Now it won't reboot ubuntu at all. I hit start ubuntu. It runs through what's starting but then nothing. Screen goes blank like power saver mode. Could it be something I did or should I contact remanufacturer? Or could it be an easy fix?