Automatic software update OS 10.6.3
I installed an automatic update yesterday and since then, after an long idle time of a couple of hours, when re-awakened, the computer is unstable, makes a stuttering noise, when I click on any item it won't stay open--in short, I now need to unplug to shut down and on restart things are fine. I can't shut down normally because I can't sign the administrator pane because of the stuttering. Any ideas what's going on and how to resolve? Thanks.
Mac, Mac OS X (10.6.3)