So, this little icon showed up in the notification area today on my computer. It doesn't do anything, the "notification area properties" labels it "<no title>", it doesn't appear to be linked to any sort of program. I've never seen the icon before, and it's got me worried. 
(It's above the arrow)
I've got Vista Home Prem. x64 with NIS 2010. I'm running a full scan ATM, but nothing's come up. Since this thing has popped up, my computer has been doing some odd things. I'm afraid it's a virus, which is why I'm here. Any help would be greatly appreciated.