output bloks windows

[Mauro Venanzi <jjfnet libero it>]

hi
on the standard output
is given the result of my program
the output never stop because there 's a while cicle in the function
that prints out

the gtk windows  is blocked after the program began
to print out i have done also a fork before print command

how can i do?
thank you

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                      Universe Creation 
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                      tar -Uvh BigBeng.tar.gz
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Mauro Venanzi linux ru250233
hall2001 athlon-xp rm 135009 on Suse 8.1