I've noticed a bug with the button painting: in the chat window, when I
quickly move my mouse over and out of a button many times, some graphic
artifacts appear near to the button borders. I'm using Windows Vista with
Aero activated. I've attached two captures: one with the initial clean
painting of the buttons (those to copy, paste, ..., just under the menu bar)
and an other one after having moved my mouse over and out of the buttons
many times. Did someone else noticed this bug ?