I am having a little problem with layers. When I open a new layer, and then try to return to the original one by clicking on the tab, it doesn't go to it. It does go to it if I press Ctrl+Tab. I can continue to open layers, and the rest will work fine by clicking the tabs, but I still can't open the original one without using Ctrl+Tab, or closing all the other layers.Just wondering if anyone can shed some light on this.