A couple of days ago, ALL of my menu extras started disappearing. I have about 6 items up there, and a few moments after logging in, they will all disappear. They will occassionally pop back up for a few seconds. But even when they do pop back up, none of the items are functional, then they simply disappear again in a few seconds. Checking/unchecking the showing of the menu extra in any of the item's preferences/control panel has no effect. In the case of iSync, I can check the box, but then when I reopen preferences it is unchecked again. In Sound CP, it won't even let me click it on. I have repaired permissions to no avail. I have 10.2.3 running, and the problem started sometime after installing Safari (although I'm not blaming it). I have a similarly configured iBook that is NOT exhibiting the problem. The only other thing I can think of that is possibly related is that I re-ordered the menu extras recently.
I have also tested other accounts on this machine, and none of the other accounts exhibit the problem. However, they also only have 2 menu extras loading (whereas my logon has about 6). On the surface, it would seem that if I could simply manage to turn some of them off, my problem might be alleviated. I am still unable to find a way to do so, though. Any attempts at checking/unchecking items to turn on/off menu extras has no effect at all.
Is there some .plist or something I can delete to clear out the preferences that might help? It is driving me crazy!!