Behavior Shield vs rundll32.exe

Avast Free Antivirus / Premium Security
1

note that since upgrading to ver 7 behaviour shield finds rundll32.exe as a suspicious file but it won’t make any popus (seems like it won’t block rundll32.exe but it logs it every time).
rundll32.exe was uploaded to virustotal.com and came out clean as a whistle 0/43.

any suggestions?

2

Check http://forum.avast.com/index.php?topic=94056.msg749554#msg749554 please.

3

avast let rundll32.exe start normal, without sandbox or popup message, but its still in logs as a suspicious activity.