I have had a short go just shutting down ZoneAlarm, and I did not get any BSOD. This was rather a short test, and I'll report back when I've tried a longer test. In the mean time I'm raising a problem with Zone Labs: I have paid for Zone Alarm Pro, and don't like working without it, so I hope they'll fix this bug. Dominic North Red-Black IT Limited +44-7803-293753