For d past few days i have not been able to open yahoo mail or yahoo messenger with my multilinks connection. Please does anyone know the solution to this problem.

from what i have heard (and i have not done any research of my own to comfirm this, the thing is caused by a virus , appearantly undetected by ur everyday AV (for now) and the main target seem to be yahoo msger , as alternative u could download and install pidgin http://www.pidgin.im/download/windows/
its not are featured filled as yahoo , its quite simple and a good substitute for yahoo msger at least till the problem is fixed, its also a multi login clients that supports msn jabber and other stuffs , u can also install trilian google it.