Ok sorry for this other mail. Bugrat didn't work, but my problem can be archiviated as NOT EXISTENT. The fact is that I used a class variable to store the output stream, and this variable is (correctly) used by the different threads ... Best Regards, Fabio ---------------------------------------------------------------------------- --- Fabio Vignoli (email: [EMAIL PROTECTED], tel: 0039.10.6012177) SIMS Studio di Informatica Mauro Salvemini Via Sestri 59/1 16154 Genova (ITALY) ------------------------------------------------------------------------------
