This is so stupid, its embarassing to have to post it.

I have Microsoft J++ 6.0 (service pack 3). I am trying to use a swing class (JOptionPane) to display an error message.
J++ says there is an error in the import statement: import javax.swing.*;
and gives the error message: undefined package 'javax' (J0051)

Has anyone run into this, or know how to fix it.