Hello all, My beloved 13" MBP (Zippy's his name...) has started acting like a bit of a dick. I've noticed for a few weeks that it takes absolutely ages to start streamed video (YouTube, video reviews on Gamespot etc.). I see the frame into which the video should be running, and it's completely black; then after something like three or four minutes, the video starts to run. It buffers just fine (my internet connection is definitely not the problem), but initiating the video takes forever. Added to this, two days ago, I had to turn off Zippy with the power button when OS X decided to hang (permanent pin-wheel spinning over the Safari window). Then, five minutes later, I had to do it again. Then, yesterday, I had my first ever kernel panic. Rather freaked me out, after two completely painless years of OS X use...! I'm running Snow Leopard, by the way. As you can see from my signature, it's got plenty of RAM to work with. My SSD tends to be pretty full most of the time, but I shouldn't expect that to be a factor; plus, it's been this full before, without messing me around. Can anyone comment on this, please? Does it sound like a virus to you? If so, what should I do? Many thanks, DH.