rod03801:  I've had that problem show up a few times too.  For some reason the dancing banana stops alot.  The others may be working but in the same message that one doens't. A ctrlf5 seems to fix the problem. 

It doesn't sound like I virus.   It sounds like you've had a program installed onto your computer.  How long have you had the computer and do you have a restore point on your computer?  If you do, you could restore it to an earlier date and see if that helps.