Is anyone using sophos on their Citrix servers and started experiencing User profile hives not unloading from the registry? its started happening for us a couple of weeks ago, but just hit us hard over the last couple of days as the registry on a few of our Citrix servers filled up, leaving the servers unresponsive to new logons Sophos is reporting dodgy activity in m:\windows\ps400hotfix\regdll.exe, so ive passed this onto sophos for false positive analysis, but the only citrix servers that arent showing this behaviour are 2 that are still needing a reboot after a sophos update that was pushed out to all the Citrix servers on 6th December. All the other Citrix servers have been rebooted since then. Andy