三剑客奇迹15白金加点:关于ICQ聊天室的问题

进入ICQ-Chat后，Student房间进不去，但别的房间都能进去。students房间出来一堆这个东西：

Trying to Connect - irc.icq.com
Connected.
AUTH(NOTICE):*** Looking up your hostname...
±±γ43??5': Erroneous Nickname: Illegal characters
Guest_273(001):Welcome to the IrCQnet IRC Network Guest_273!~43@202.198.57.241
Guest_273(002):Your host is irc-m07.icq.aol.com, running version Unreal3.2.1
Guest_273(003):This server was created Mon Jul 19 2004 at 10:11:30 EDT
Guest_273(004):irc-m07.icq.aol.com Unreal3.2.1 iowghraAsORTVSxNCWqBzvdHtGp lvhopsmntikrRcaqOALQbSeKVfMGCuzNT
Guest_273(005):MAP KNOCK SAFELIST HCN MAXCHANNELS=10 MAXBANS=400 NICKLEN=15 TOPICLEN=150 KICKLEN=150 MAXTARGETS=20 AWAYLEN=150 are supported by this server
Guest_273(005):WALLCHOPS WATCH=128 SILENCE=15 MODES=12 CHANTYPES=# PREFIX=(ohv)@%+ CHANMODES=beqa,kfL,l,psmntirRcOAQKVGCuzNSMT NETWORK=IrCQnet CASEMAPPING=ascii EXTBAN=~,cqnr ELIST=MNUCT are supported by this server
Guest_273(251):There are 29 users and 4094 invisible on 9 servers
Guest_273(252):19 operator(s) online
Guest_273(253):3 unknown connection(s)
Guest_273(254):1901 channels formed
Guest_273(255):I have 694 clients and 1 servers
Guest_273(265):Current Local Users: 694 Max: 1774
Guest_273(266):Current Global Users: 4123 Max: 12491
Guest_273(375):- irc-m07.icq.aol.com Message of the Day -
Guest_273(372):- 4/7/2004 10:38
Guest_273(372):- The IrCQ-Net (ICQ IRC services) is provided to you
Guest_273(372):- by ICQ Inc. By entering or using IrCQ-Net you are
Guest_273(372):- consenting to be bound by the IrCQ-Net (ICQ IRC
Guest_273(372):- services) Terms of Use
Guest_273(372):- (http://www.icq.com/legal/ircqnet.html) and by
Guest_273(372):- the applicable provisions of ICQ Terms of Service
Guest_273(372):- documents all available on
Guest_273(372):- or through http://www.icq.com/legal/.
Guest_273(372):-
Guest_273(372):- If you do not agree, do not enter or use
Guest_273(372):- IrCQ-Net.
Guest_273(376):End of /MOTD command.
Guest_273(455):Your username ±±γ43?? contained the invalid character(s) ±±γ?? and has been changed to 43. Please use only the characters 0-9 a-z A-Z _ - or . in your username. Your username is the part before the @ in your email address.
#students: Cannot join channel (+b)
怎么办呢？谢