text: yahoo messenger has vanished.? i downloaded yahoo messenger with voice a few months ago.  today it has disappeared from my computer.  i am the only one using my computer and i didn't delete it.  anyone ever have this happen and if so, how did you solve the problem, re-download it?  i have probably lost all my contacts if i have to download it again. i agree with "tesha", try re-downloading, and add all your contacts by going to your yahoo e-mail, and go to "address" and all your contacts will be there, just add them to your y-messenger.