Every 4 hours, 38 MB download, 3G network

I updated to NIS 2009 2 months ago and now every 4 hours 38 MB is downloaded. I have a 3 PC license and one PC runs LuCommServer_3_4.exe with the large downloads every 4 hours and the other does not - no large downloads. This morning AluSchedulerSvc.exe kicked off the large download.

I'm on a 3G network and this causes me to run over my 5 GB monthly data limit.

1) Why the difference between to two PCs?

2) Why the large download every 4 hours?

3) Is there something else & how can I trap it? I disabled MS auto update.

I can't find anything else in the history log that would do this. NIS is in complete auto mode with flash downloads and auto scans.

 

Thanks,

 

Larry