Anyone having this problem? I haven't been using it much after Safari 5 (just because Firefox takes forever to open compared to Chome and Safari) but I think that since 3.6.4 or 3.6.5 it constantly hogs my system using 80%-90% of my CPU according to Activity Monitor. RAM usage is similar to other browsers. Yeah I know I have an old Mac (Mini Core Duo 1.66) but right now for example Safari 5 with 5 tabs is using 5% and Chome is at 4.5%. I know it's not the extensions because I downloaded the 4.0 beta which disabled most of them (just to test it) and the same thing happened. Btw I'm using 10.6.4 Thanks!