some of our users (not all of them) experience a crash of Firefox (3.0.6) every time a calender appointment notification comes up.
At one PC I solved the problem by unselecting "play sound" in the calender properties of the user. But others report that the problem remains even if it is unclicked.
Other PCs (with the same environment: XP SP3, Firefox 3.0.5 or 3.0.6) did never show this...
Does anybody else experience the same problem?