I"ve had trouble with Linux Mint 14 Cinnamon freezing. system would freeze in the middle of whatever I was doing. mouse and keyboard unresponsive. I'd have to press the reboot on the case to get it working, even then I'd sometimes have to reboot several times before I could even get the keyboard working enough to enter user name and password.
Searched for an answer, no joy. On a hunch I installed the latest bios and that has cured the freezes. Upgraded the Bios to the latest ver 1402, made one change in the bios to a CPU setting.
Haven't had a freeze since the upgrade.So far Uptime is 1 day, 6 hours and 34 minutes and counting.
My system description:
Asus M3N78 Pro Motherboard
AMD Phenom 9500 Quad Core CPU
8 GB RAM
GeForce GT 520 Video Card
Logitech M705 Mouse
Logitech K350 Keyboard
Linux 3.5.0-17-generic (x86_64)
Linux MInt 14 Nadia Cinnamon
hope this is of some use to someone