NIS 2009 can not run auto livedate

Hello,I am using NIS 2009 and I believe it is very excellent.But there is still something worries me.

NIS 2009 can not run auto livedate and pluse update.But I can manually run livedate successfully.

I am using Vista SP1,and Antibot.

What shou I do?Wait for your help!

Thanks!