Found some troublesome fonts and killed them but that didn’t make any difference (it was a longshot anyway, I know). My SMC and bootrom are both up-to-date. The only thing I’m not up to date on is OS because digi hasn’t qualified 10.6.8 yet (of course).
This is one hell of a mystery – on both the Iannix and Qt-in-general fronts.
EDIT: I wonder if its possible that this is a 32-bit v 64-bit problem. That might set off all these flags… Bob, is your machine Core2Duo or no? Mine has 1x 64-bit core.