Mouse Button stops working?

Ive noticed that every once and a while my mouse buttons will not work, however i will still be able to move the curser. I just relog and the starts working again but i was wondering if anyone else had this problem.

Click the resize bar for the text box and it should start working again. Easier than relogging

I get this problem a lot too, but for some reason just resizing the text box doesn't work for me. I usually open up the CC box (Esc + Enter) and click some buttons there with my mouse (without actually CCing). Then I exit that and resize my text box, and that always works. Hope it helps.