Since upgrading all our XP workstations to Zenworks Desktop Management Agent to (Zenworks7 Sp1R4) some computer's Application Explorer is failing to start properly.

The Application Explorer system tray icon is defective, it does not respond to anything and no application folders are loaded. However it does work ok if you use Workstation Only first then log into Edirectory afterwards

I have tried reinstalling the Desktop Management client, Novell Client, re-registering the workstation and clearing the NAL Cache. The only thing that fixes it is reloading Windows