My macbook air 11.6 is running really slow. Its painful actually. I'm talking minutes to load each page. Being a new mac convert, I only know that if this was a pc I would be running my anti virus, spyware and adware software and doing a config, but I have no idea what the equivalent is on the mac. Don't know if its a coincidence but I did an online survey just before the problem started and have been getting pop ups which I never had before. This is driving me crazy so if anyone can help I would be very grateful.