Hi MacRumors friends, I have a problem with my MacBook. More than a month ago I updated from Snow Leopard to Lion. After Spotlight did its indexing (2 days) I thought everything was alright. Unfortunately, I still have 2 problems till day one after the update. Problems: 1. When I just open Safari and don't start surfing, just Safari and a Google tap open, my CPU increases its temperature near 70°C (160° F). I thought, that maybe Safari has to do some indexing too, so I let Safari stay in the background (70°C for two hours) but nothing changed. 2. When iTunes changes from one song to another one, the system lags. I can't wipe back to desktop from fullscreen iTunes to desktop for about 5-10 seconds. This is also true if iTunes is not in fullscreen. Also I observed, that when iTunes starts the next song and I am not in iTunes fullscreen mode, the desktop wallpaper disappears (replaced by a grey-screen) for around 2 seconds. What I did: Tried to repair permissions for several times, from my main user account as well as from recovery disk. Nothing changed. I hope someone can help, regarding the heat created by Safari and the lags regarding iTunes. Thanks for your help and time. Have to revise my statement: Started Safari some minutes ago and CPU gets +90° C (194° F). To make it clear, it's just a Google tab open, without any search input.