I just recently switched from Norton Antivirus to ZoneAlarm Antivirus and I notice that my system still seems to be running slow. I also have stardock running on my system as well so I'm not sure if that has alot to do with my system. Last night I was on the web and had my itunes playing and everytime I would scroll down a web page my itunes would start to skip while playing. This problem has never happened before and I wanted to know what it could be. I have run a virus scan, adaware, spybot, error nuker and windows defender and I have seen nothing. I was thinking about upgrading the memory, but would that even help my situation out. Should I go back to Norton which definitly slowed down my system? Any advice would be a big help. I don't want to start buying a whole lot of software and it end up not helping at all.