I recently installed 12.04 64 bit to my new laptop and it is crashing frequently but inconsistently.
When this crash occurs, any windows I have in the work space are left intact but are unresponsive. My menu bar and launch bar seemingly disappear and keyboard shortcuts are unresponsive; however I am still able to interact with my cursor on the screen.
I am using a Dell Inspiron that I recently purchased; along with this I installed a fresh OCZ Solid 3 60 GB hard drive and an 8GB RAM upgrade.
I installed Ubuntu via USB.
Please let me know what further information would be helpful to debugging my system, I do not mind a fresh install but I am just curious about how to solve this problem should it arise again.