I just downloaded 2.4 and have been playing with it.  Very cool.  One
problem though.  While in a Morphic project, I made the flaps appear.
Every time my mouse goes over the Squeak flap, an error window appears and
then the flap opens.  The error is:

attempt to index non-existent element in an ordered collection

Thought someone might want to know.

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Jen a.k.a. Smilie
:-P
smilie at cc.gatech.edu