Microsoft AntiSpyware target colours

Just wondering if anyone here who uses Microsoft AntiSpyware might know why the target icon in the taskbar changes colour?

Most of the time it is a red/yellow/black combination, but other times it is a blue/pale blue/black combination.

I have active protection turned on.

Apparently, it’s when you access your computer through Terminal Services, or Fast User Switching (which itself uses Terminal Services):

http://fighters.simplenet.com/mk/mk1/

Thanks very much for the quick response.

I can sleep easy now.