What steps will reproduce the problem? 1. Enter name, server domain, password 2. Click login

What is the expected output? What do you see instead? Successful login is expected all the times. Sometimes instead a "stack: empty" error appears.

What version of the product are you using? On what operating system? xeus2-test4 Windows XP PRO SP2 (x86) .NET Framework 3.0

Please provide any additional information below.

jabberd2 supports in-band registration and agsXMPP supports it too.

Irerelevant