The transcript is not intended to be written to from outside of the GUI thread. You can fix your code by writing: [ WorldState addDeferredUIMessage: [ Transcript show: 2000 factorial ] ] forkAt: 40. Now the Transcript could possibly do that itself in case it is called outside of the UI thread ... Lukas On 21 November 2011 21:51, t olschewski <t-o@gmx.org> wrote:
I've found a shorter method to reproduce a red Transcript window with two dancing lines in yellow on my system: I start a fresh (1.3-13315) image, open workspace and Transcript, then p := [Transcript show: xxx factorial] forkAt: 40. (don't try this yourself) where xxx is a 2 followed by 4 zeroes.
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-- Lukas Renggli www.lukas-renggli.ch