iMacs freeze for no apparent reason

As time passes by, more and more users reported that Apple’s new iMacs suffer from a nasty bug that locks everything, making the system unusable, until the owner reboots it.
Quoting the customers, the bug doesn’t actually stop and freeze the system. Everything is functional, but the computer is impossible to control by the user.

Here are two reports of this kind.

Whatever was going on at the time continues, so if you were listening to music it continues to play. The mouse pointer moves but you cannot select anything. Tabbing through apps doesn’t work.

Those reports didn’t went unnoticed to Apple. They are aware of the issue, but they haven’t found a permanent fix just yet. Since August when the iMacs launched, there were two software updates (1.0 and 1.1) that contained important updates regarding video drivers, but none of them actually had a fix for this freezing issue.

We’re waiting for more information as soon as possible.