i've lurked here for a while, but have never posted. it's been a least five years since i installed a Norton/Symantec product, but decided to give NIS 2006 a try today. after installing and restarting, i received a bunch of annoying popups, etc, opening up the security center was extremely slow and live update was slow also and required a restart. after restarting, i saw pretty erratic cpu usage by a few of Norton's different processes. because of all this, i was about ready to uninstall right away. instead, I decided to give Norton one more short. i restarted my puter and the high cpu usage disappeared. maybe the CPU usage I noticed before was because Norton was initially performing some automatic system scans. now, i can barely notice that NIS is installed at all. looking at windows task manager, the processes are using 0% CPU most of the time, and CPU time over a few hours usage is negligible. i've enabled scanning within archives and haven't noticed a change. opening different file types such as zip, rar and exe does not cause any cpu spikes either. there also seems to be no noticeable slowdown in browsing large numbers of files in windows explorer, browsing the internet nor downloading files. the only thing I have noticed is that when opening an MS Office document, a new process is spawned, which uses up to 50% of my CPU cycles for a couple seconds. Then the process is terminated until the next office doc is opened. thankfully, disabling the annoying Norton Protection Center service is also very easy. many other AV/Security Suites I have tried have led to much worse CPU resource usage so I am quite pleased with Norton. I've also had various problems with internet speed using other security packages. Other programs' firewalls have interfered with the Trillian IM app on my PC as well as an on-demand network app I use for work. Norton does take up a bit of memory, but in exchange, you receive an AV, antispam, firewall, IPS, and antispyware. What I'd like to know is if others have experienced the same positive experience with Norton AV or NIS products? If so, then why is it getting such a bum wrap? Is the low CPU usage because we are actually giving up some protection in comparison to other security vendors' products? Is Norton actually a timebomb which will lure you into a state of comfort and explode in a week?