I followed artie's procedure and the problem returned, so I'm done trying to solve this one. It shall remain a mystery.
Well, at least you now know that it's beyond your control, apparently inherent in 10.6.8, and in the bargain, it sounds like your clean install benefitted you.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
