I have tried tons of different "solutions" to no avail. First off I'm running 64-bit 12.04 LTS, and I'm using a USB mouse that freezes after 20 minutes or so? Everything else will work except for the mouse.
greg@ubuntu:~$ synclient TouchpadOff=0 Couldn't find synaptics properties. No synaptics driver loaded?
Ubuntu 12.04/12.10 Keeps on Freezing
It just didn't work after I installed the kernels.
Upgrade your graphics card drivers
Again this did not work.
Thanks in advance, tell me if you need anymore info at all.
Update: I just tried to log off while it was frozen and that did not fix the problems as it did for others. I'm going to do my updates and see how that will work. I will post an update if it works.