Problem in showInputDialog

[mghaheri]

Hello
you know? when I execute code bellow:
JOptionPane.showInputDialog("hello");
compiler compiles without any error and next the dialog appears.
But when I do any work like typing anything in it or clicking ok or cancel
PROGRAM LOCKES and I have to Force Quit it.
How can I solve the problem.
I am using ubuntu 8.10 and eclipse sdk

[marclurr]

Hey, I'd love to help, but could do with seeing some code ;)