Im running ZoneAlarm Extreme Security 2010 on windows XP

The UK clocks went back 1 hour and since the virus/spyware scanner is not activated and I can't fix it. The following error comes up,

Anti-virus scanning is de-Activated.This can occur if the system clock has been set forward oranti-virus updates are disabled.

The advanced options and scan buttons are greyed out. The only button I can press is to update.
The update runs as normal and looks like its doing something but then at the end it says the update could not install.

I have the same software with same key running on 2 laptops running with windows vista that do not have the problem.

I have seen a lot of threads about this issue but nobody has come up with a solution. Does anyone have any solution to this?