mouse clicks doesn't work

[Manfred Lotz <manfred lotz web de>]

My root window setting is that 
Button 1 click is Popup root menu and 
button 2 click is Popup window list

Sometimes it happens to me that clicking mouse button 1 and 2 are
not working any more. There is only a beep after clicking.

Only restarting sawfish helps.

I would like to know what I can do to find the cause of the problem.


Manfred