Hi! I'm brand new to the form, so, please forgive me if I sound completely stupid. I purchased a macbook approximately... 8 months ago? It's worked just fine until recently... First: The mouse pad stopped functioning. I can move the mouse with the pad, however, I cannot click with it. Not a big deal. I bought an external mouse and that problem was ... relatively solved. Now I'm having another malfunction. Whenever there's a scrolling bar at the bottom of a browser it automatically drags it all the way to the right. It's making it impossible to use Microsoft Excel (Mac version). Any ideas what could be causing this? At first I thought... maybe one of the arrows was suck, but... it's giving me no problems when I navigate though text. Just the windows.