I run a MBP early 2008 2.5 Penryn. I have 6GB OWC RAM and a 500GB Hitachi HDD. I run SL 10.6.2. From time to time, Safari freezes my computer for a time between a few seconds up to about 15 seconds, when I open a new tab with "CMD+T" or a new window with "CMD+N". As the whole computer freezes during this time, it is pretty annoying. Does anybody else experienced this?