On Tue, 10 Feb 2009 13:45:40 -0500, Gary Keramidas wrote:

sounds like you may have application.screenupdating set to false and it never
reset.

next time it happens, type application.screenupdating = true in the immediate
window and press enter. then see if the window is responsive.

Thanks for the reply, Gary, but not at all consistent with the symptoms
I've described.