Ok, I have a Logitech MX600 wireless mouse that I got for Christmas. It's been working fine until the last day or so. Now, it's acting sluggish and doing weird things like completely not working for several seconds, minimizing open windows when all I did was click in the open window, and initiating scroll mode when I didn't do anything. The logitech monitor that runs in the system tray says the batteries are good. And, all that's between the mouse and the receiver is a stack of cds and a thin (read cheap) hutch wall. The cds have been there for over a week and haven't posed a problem. Are the batteries in fact getting weak or is the problem something else?