I've had it happen to me like 7 times in the last two days. I have to restart using the power button. Any ideas on where I get this OS to work like it should?
Also run a RAM test. I've had faulty RAM before that caused the computer to randomly lock up. And when you say say 'freeze' are we talking total system lock up, or do you just get 'program not responding' errors with the little blue spinning circle?