Problem with Opera

I try to use Comodo Antivirus but it freezes my browser Opera. Opera loads, works normally for a few seconds and then the only thing I can do is close it and get an error message in Windows (XP). I excluded Opera folders from online scan, but it didn’t change anything.
What can I do?

I’m having a simular problem I had to turn off the HIPS function. Hope it helps.

Dave