Just downloaded the demo of Avadon, and it's very frustrating to try to play. It won't recognize mouse input if I just click the button; I have to click and hold it for about a second.
Click.. nothing.
Click.. nothing.
CLICKCLICKCLICKCLICK... nothing.
Cliiiiiiiiiiiiiiiiiiick... that works.
Happens with all mouse input - menu selections, moving my character, combat, etc.
MacOS 10.6.6, Kensington ExpertMouse, Kensington TrackballWorks and SteerMouse 4.1.1 installed.