Close Yahoo messenger. Hit Alt-Ctrl-del and check if there is any mention of Yahoo in the running processes / applications and end them. Restart yahoo messenger.
If all else fails, try kopite which is compatible with yahoo (and others)
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Animator Emanuele Kabu’s psychedelic video is a stunning tribute to Lisbon city
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Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.