Vista: Action Required (but Not Really)

I'm having a strange problem with BitDefender and Windows Vista: After having my computer on for an extended period of time, I'll log-in to my user account only to find that BitDefender has an "Requires Attention" flag on the real-time portion of its AntiVirus component. Clicking "Fix Now" does nothing--no new processes are spawned, and nothing appears to happen in the User Interface.


The only fix is to completely reboot my computer, which since I always have tons of applications running is quite a pain. Has anyone else experienced this problem?


- All 4 of BD's services are running


- livesrv.exe, seccenter.exe, and xcommsvr.exe are all running in the background


Any ideas?