Apr 10, '09 07:30:00AM • Contributed by: Anonymous
I discovered the cause yesterday: Dashboard. There must be some circumstance where it must not properly release the keyboard grab. Fortunately, I also discovered that explicitly invoking Dashboard (by double-clicking on Dashboard in Applications) cures the problem.
[robg adds: I haven't experienced this problem myself, but I'd be curious to know if others have, and if this fix works.]
