Sudden, random freeze after 10.5.7 update
Four times in the past three days, since installing 10.5.7, my Mac has suddenly gone completely unresponsive. This has never happened before.
In each case, the screen still displays, but the clock in the upper right hand freezes where it is, and all keyboard and mouse input is ignored so I can't force quit anything. The machine will stay unresponsive and frozen until I reboot with the power key. This sudden freezing will occur regardless of whether I am actively working in an application, or I am away from the machine.
There are no entries in the system logs that accompany this freezing. I have fixed permissions and checked with TechTool and Disk Utility and found nothing amiss. I suspected a heat issue but I have not yet been able to find any problems - the fans seem to be working as expected and I haven't noticed any sudden spikes.
Any ideas?
In each case, the screen still displays, but the clock in the upper right hand freezes where it is, and all keyboard and mouse input is ignored so I can't force quit anything. The machine will stay unresponsive and frozen until I reboot with the power key. This sudden freezing will occur regardless of whether I am actively working in an application, or I am away from the machine.
There are no entries in the system logs that accompany this freezing. I have fixed permissions and checked with TechTool and Disk Utility and found nothing amiss. I suspected a heat issue but I have not yet been able to find any problems - the fans seem to be working as expected and I haven't noticed any sudden spikes.
Any ideas?
MacBook Pro, Mac OS X (10.5.7)