I have just installed msn messenger 6.0 and two net
passport accounts. When I try to log out one of my account
and simultaneouly log onto another by typing in the ID and
password, the messenger did not immediately initiate and
seemed hang-up for about 20 minutes before it started to
log in successfully. I have checked my internet connection
and it was working well.

How can I solve the problem?

Or where can I download the old version of MSN Messenger
5.0?

Anyone can tell?