comodo antivirus scanner stuck/frozen

I’m using Comodo 5.8 on my pc (vista 32-bit). Everything is fine. However, if I run an antivirus scan, the scan freezes after about 3 minutes. The antivirus scanner widows says:

Scanning: My Computer

Status: ::1

I’ll attach a screenshot of the problem. Any tips/suggestions?

[attachment deleted by admin]

ITseems to be paused. Can you please press Resume button?