yeah I did reboot my MacBook after update, I'm using the 1848 version.
I've just checked files in the bugreports folder, all the log files have the same content:
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Parallels Desktop 2.2 for Mac OS X version 2.2 Build 1848.0 from 2006-06-13
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Received SIGBUS: Bus error
Access to fault address: 0x0
unknown signal sender: 2
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Last edited: Aug 24, 2006