#1 <ESC> produces error in *dirty* warning dialog.

[Chouser]

When the user pushes "clear" (or hits <ESC>) after changing an entry (such that it is marked *dirty*), a warning dialog pops up. If the user then hits <ESC> (again), the dilog box flashes, but doesn't go away. Then when the user finally does choose "Yes" or "No" in the dialog box, an error window pops up.