Billsburg, I had the same issues about a month ago. About a 2 year old laptop with wireless mouse. It kept dropping commands or I'd have to click several times for it to except commands or I'd be dragging something across the screen and it would release before I let go of the button. And it only happened in Chief. I plugged a wired mouse in and all is fine. I haven't had a chance to take apart the old mouse to see what's up with it.
Dan