Cannot connect to windows terminal/XP Fast Switch disabled

Okay! So my Comodo Firewall pro has been great until yesterday. I attached a Western digital 1 TB external hard drive to handle back-ups which I have planned to do with Comodo Back-up. I also download a new version of PC Tools Spyware Doctor and Registery mechanic. Now when I boot up I get a meesage from Comodo Firewall that it cannot connect5 to the Windows Terminal (or something like that) as the XP fats switch has been disabled.

Has anyone else found this to happen? If so how do I correct?

Help, not devastating but frustrating!