Hi,

I committed a fix to The Inbox of http://bugs.squeak.org/view.php?id=4530
TextInput of PreferenceBrowser behave strangely.

   The root of the problem was that on each keystroke the
PluggableTextMorph updated the PreferenceBrowser, which in turn
updated the PluggableTextMorph, what messed up its selection.
   This solution gives a getTextSelector to the PluggableTextMorph
which is never triggered.
   Another solution could be to drop the auto updating behaviour.

Balázs