Had a pc for 20 years went to imac. I bought it 5 months ago and been frustrated with it since. spining wheel slow to load pages didn't play tv shows and the list goes on. When I bought it I had Maverick then I upgraded to Yosemite thinking it would get better. Yesterday I downloaded Firefox and I think problem is solved..its much much faster and can see all the videos.and pages load quickly. I thought safari was suppose to be good. I have a ipad and iphone and no problems. Its definitely a brower issue. Another thing since yosemite apple mail NO LONGER remembers junk mail and I still can't figure out why not. is there a trick to that a settings change?? Suggestions?