I posted 2x above a few days ago. Same stuff, freezing... ctrl-alt-del... signout and back again... all good. Yesterday, for the first time, I had a couple of very short (1-2 sec) freezes that didn't stick and the game continued after. I've been noticing stuttering in the game for a while now and now I'm wondering if the stuttering is just a series of these really really short/micro freezes (millisec. range). The duration of the freeze might be the changing variable. I wonder if left long enough one of the freezes that seem to require ctrl-alt-del might actually recover like the shorter ones.