Sophos protection disabled

Hey,

First of all I'm a Uni student using Sophos Endpoint on my computer for anti virus protection.

The software checks for updates every hour or so, and updates sucesfully when there is an update, However I have just hovered my mouse over the icon and it reads "Sophos protection disabled" - The Icon is blue, it is fully up to date and I cannot see any reason as to this?

Does this mean I am not protected against viruses? I have on access/on read checks enabled, will they not be performed? And how can I remedy this?

Thanks alot,

Nels