A week ago my 2010 macbook with osx 6.3 started freezing up. The freezes are bad, nothing short of rebooting with the power button works. No ball just a screen freeze. It does not appear to be connecte to a single app. It got increasingly worse, happening more often. I ran disc utility with the startup disc, problems were found and resolved, i rebootwd pram and ram, it freezes in safe mode, in single user mode. I ran hardware test with the disc. The short test die not find anything, the long test is now runninng. Edit update: the long hardware check did not find any problems. Suggestions anyone?