why my yahoo messanger do notopen when we sign in?
339595
.click on messenger>connection preferences>  and select no proxies if something different was selected ,if that doesnt work ..check no network detection ,if even that doesnt!..check ur id and password ,..
402762
i think the messanger didnt create shortcuts wen u installed it...\nif u cant find the icon to run the messanger go to\nsystem drive:&#92;program files&#92;yahoo \nand u would find the exe file there\ncheers
106720
May be your E-mail account has elapsed or you exit to messanger without signout
433725
often messenger goes down - especially when the servers are busy.\n\nIt might not be you!
248015
Are you able to get the sign in window to open, then type in your ID and password but when you click "Sign In" nothing happens?\nIf that's the case, do you have a firewall or are you using Windows XP with it's own firewall? If so, open Messenger, close the sign in screen and click "Messenger" at top left of the main Messenger window. Click "Connection Preferences" then choose "Firewall with no proxies". Also make sure your type of connection and your location are correct, click "Apply" then "OK". You should be able to sign in after that.
624253
delete yahoo! messenger and reinstall it again.it's probably has some compatibility issues or bugs.It is also sometimes caused by a virus, but not if don't think so.
674153
are you the only user on the computer?, I had this problem with people ticking the boxes on things (ie msn messenger) to log them in automatically and if you tried to change it you couldnt
987164
try refreshing the page \n\n also you may need to go to yahoo messeneger and download the program IM will not work without it. just got yahoos main page and click on the messenger icon up top
1107283
Maybe is the firewall or the anti virus just turn it off and when you open the messanger turn it on.
1036210
I would say, try updating your yahoo messenger, but for the past few days, I been having the same problem. Your not alone.
21302
The username MUST be lowercase when you try to log in. Try that.  Also,  on the very bottom of http://messenger.yahoo.com/ click, Launch Web Messanger. If that works, that it sounds like a router issue, etc
260141
Make sure you have Yahoo messanger with Voice installed.
181902
Let me try to understand. First you sign-in and then you sign out. The another person enters his login-id and tries to signin but it fails. You have close Yahoo Messenger and then restart to signin?\n\nThats very strange!! Because if you enter the password and user-id clearly it doesnt matter how many people sign-in one after another.\n\nMaybe you should uninstall YM and re-install it. It could be some installation issue...\n\n.:Fishie:.
1124577
My yahoo email is doing the same thing right now. It won't let me in no matter what I do. Same with my messenger
1180457
Yes today , i think yahoo server are too busy that's why not signing in messenger ...\nMay be wait and then try again ...
437500
What IM service are you using and do you have a firewall?  Did this suddenly start happening?  Important info.  IF you have a firewall program it maybe blocking it.  If you updated or installed a new IM program you may have to reset-up the profile.  Also, if you have a internet filter program (like Cybersitter)it maybe blocking it.  Let us know and we can help further.
593426
try uninstalling  and reinstalling yahoo messenger/