Ok, this is a really bizarre problem. I installed Ubuntu 9.10 about a month ago, and everything has worked great. But a couple days ago, the buttons on my wireless usb mouse stopped working. I'd click various things but nothing would happen. Brand new batteries, and I was able to move the cursor.

Also, it would only be like this in certain applications. For example, the first time it only wouldn't click in Firefox, but I was able to click the Ubuntu menus and such. Then it evolved to the point where I couldn't click those menus either.

It used to be sporattic. It would stop working, then fix itself after a while. But now every time I boot up into Ubuntu, I can hardly do anything, because once I launch an application (any application), the clicks stop working.

Any idea what the heck is going on?