I'm using Safari 5.0.2. Lately every time I use Safari at some point during usage when I try to open a new tab or window I cannot do so. What happens is the new tab appears but the website I want opens in one of my other tabs already open. or it will fail to load in the new tab/window. At the same time as this happening Safari is crashing more and more and my Macbook fan is whirring like mad. Any ideas what's going on? It's so frustrating having to get chucked out or log out to make my tabs work for a short while before they stop functioning properly again. I am not overly tecchy minded so may need hand holding to help me through this!