I have Bitdefender Total Security 2008 and everything is working perfectly so far. But yesterday I got a Antivirus 2009 popup informing me that my computer may be infected and advising me to run its scan. The only way I can get rid of the popup is through manually through task manager. It pops up every few hours. Bitdefender reports that the computer is clean. I'm pretty sure it is some kind of virus or adware. How do I get rid of it?