75MB updates everyday??

Is something wrong with my Norton Online or is there some reason that everyday there has been a 75+MB update???  I've been using the "intelligent updater" because I have a dial up service.  Having to spend 5 to 6 hours every night updating is getting to be a real drag.   I don't have that kind of time.

 

I've also had a problem canceling the Live Update  once it starts.  I literally have to reboot my computer to get it to stop.   It keep asking me is I'm sure I want to cancel it.  After asking 5 or 6 times I log off and reboot my computer.