I am getting regular panics (grey screen, reboot required) on my MacBook Pro. They occur as often as 2-3/day. I recently reinstalled the system and fixed permissions in case that was the problem, but they continue.
I suspect that PowerMail is at the root of the problem, but can't be sure. I am also having the problem of PowerMail being unstable--often it crashes, and then often when it comes back, it needs to re-index files for 10-20 minutes before I can use it. The new system may have reduced the frequency of these crashes. The information that I can glean from the report to Apple after the crash is not very useful. It appears that the OS tried to dereference thru a null pointer. The only reason I think that PowerMail might be the culprit is that (a) it appears (on a very small sample size!) that the crashes don't happen when PowerMail is not running, and (b) the crashes happen as often as not when I am away from my computer, and possibly there is some recurrent process--like checking mail--that is at fault. I am not trying cast aspersions (yet), but wonder if others have seen similar issues on Macintel machines. A
