The title basically says everything. Parallels usually works flawlessly and stable, I even did a firmware update by USB for my Nokia cellphone using the latest build. Suspend / Resume however gives reproducable bluescreens with the DRIVER_IRQL_NOT_LESS_OR_EQUAL error. Please see http://data.xeoh.net/Parallels%20Crash.mov for an "action video". This not only happened with the latest version, but also (IIRC) with all versions before.
I think it is a windows management problem best to do a normal shut down for WinXP sp2 as matter of good house keeping do run the normal windows utilities to clean up at least once aweek Hugh W