Delphi2 IDE - File | Open doesn't work sometimes

Hi,

I've been having a rather odd problem lately:  after working in Delphi32
for a few minutes to an hour or so I eventually don't get a response to
File|Save As and File|Open.  The menu items are active, but nothing
happens when I select them.  The only way to restore the normal
functioning is to exit Delphi and restart it.

Any ideas what may be blocking the common file dialogs in the IDE after
a while?

--

Boris Bosnjak
Software Craftsman
DreamQuest Canada
http://www.interlog.com/~dq/