Recently my cursor and finder have been acting really buggy. I can't even work sometimes. It's not consistent too. I'll be say working in PS and want to enter an integer but then the dialog window will close because of a ghost like mouse/cursor action. Finder thinks I've clicked enter or cancel but I haven't. Actually the action did occur but I didn't do it. It's like mouse actions are being automatically engaged. Cursor flickers on browser windows and sometimes when I close a any window finder thinks I'm holding down keys like ENTER on the keyboard because it does that rapid beeping when you hold down an illegal key for a long time. I tried PRAM reset/reboots disconnecting peripherals. changing batteries. I can't try another mouse though because I don't have one. But even if I did I don't think it would have an effect because these actions are happening without me touching the trackpad. Somehow finder is receiving false mouse/cursor/keyboard messages.