It works here allright (on all my systems; PM 5.2, OS 10.4.1), in all my applications. (IMHO on of the best but mostly unknown keyboard shortcuts in OSX)
Maybe a conflict with some 3rd party extension? Did you check the keyboard pref panel in the general system preferences for a possible conflict? Karel Op woensdag, 1 juni 2005 schreef Willem Smelik: >1. I used to be able to move to another open window within PM by Apple-` >but in PM, for quite some time, it no longer works. The key combination >is still active in my Keyboard settings. Am I overlooking something? >Oddly, in most apps it still works, but there are some others in which >it does not.

