Update And Crashes

Hello,


I'm having trouble with updating Bitdefender Free. Everytime I start it up it says "Bitdefender is updating for the first time" and it stays stuck in updating in the interface.


I'd also like to point out that Bitdefender seems to crash quite alot when switching between users in Windows 7, with the error message "Bitdefender has stopped working".


How can I solve the update issue? I've already tried reinstalling, doesn't work.