The alert was getting called by a background thread (being monitored by the
dialog window). The StandardAlert stuff can't cope with that for some reason,
causing the lock-up. Reimplementing using CFUserNotification works fine.
Many thanks to John Stiles,
Russ
> I am calling CreateStandardAlert then RunStandardAlert. It works fine
> some of
> the time, but when this alert code runs when a dialog box is already
> being
> displayed with its own message loop, the alert window appears and
> looks OK, but
> it is impossible to click any of the buttons, and the only
alternative
> is to
> Force Quit.
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