[Y!M] unable to log in

[Frank Thompson]

mac OS X v 10.4.11
I have two accounts.  On messenger v 2.53 I am able to log in to either account.
On v 3beta I am able to log in only with one of the two.  Previous to Friday on 
v 3beta I could log in to either account. On the v3 that I am not able to log 
in it the wheel just continues to spin (with my pic icon showing) but will 
never complete the log in.
What cause this and what is the solution?
Frank
GA