NAV (11.1.1) for Mac got stuck when scanning the "smtp_AV_42zip_DoS.nasl" file

Hi all,

 

I've just installed the NAV for Mac 11.1.1(2) into my Mac OS 10.6.3, the installation process was good, I also ran the liveupdate, all fine. However, when it started to perform manual virus can, NAV got stuck with the "smtp_AV_42zip_DoS.nasl" file for hours and need manual cancellation. I have tried to disable scanning compressed files in NAV and scan it again, but it remains the same...

 

 I'd really appreciate your help!!! Thanks.