Hi there. Recently, i bought an imac g4 700mhz PPC with 512mb of ram. I was advised to run TenFourFox but it is a massive memory hog and about every 5 seconds, i get the spinning ball. I was wondering if it was ok for me to run safari 4.1.3 and disable java and other plugins? If it is ok for me to use it, is there a way that i can get ad block plus and a virus checker like bitdefender, dr web and WOT? Thanks!