As the subject says: Squeak hangs if an AVG anti-virus scan is run. I 
know, because I have one scheduled for 8 am on Saturdays and exactly at 
8 Morphic locked up solid and stopped processing events.

Contrast with the email client I'm using, which is a touch sluggish but 
otherwise working perfectly.

There's been no response that I could detect (even scanning the archives 
again) to my response to the VM crash thread.

There are also performance issues. Performing 100,000 math operations on 
floats and small integers with some message passing, looping, and block 
calling takes a full second or two on a 2GHz machine. Is that normal?