Like a number of other posters, I am having problems with SymDaemon hogging my computer. I'm running an iMac Core 2 Duo with 2 GB RAM, OS 10.7.5 and the latest version of Norton 260 Everywhere (it appears the last updates were installed about a week ago). I have seen SymDaemon take up as much as 137% (this is not a typo) of my CPU in the Activity Monitor. I've taken a sampling of the activity and am attaching it. I appreciate your help and hope you can find a solution.