Thanks for replying Lee. I tried the help again today and the reason I thought it was streaming is because every link I click on in the help file takes ages to show up, it really does feel like it is downloading each part of the help sections I am clicking on. I don't know why this is. It makes learning it really slow and tiresome, I'm talking around 13 seconds for each topic to show. For example, I click on Layers, the About, then wait 13 seconds and it finally shows in the right pane of the help window. Even getting a busy mouse pointer part way through like it might lock up or something. I wonder what is causing this?