Sign Out on drop down menu?

Yahoo only let me put the title in here then went straight to
this forum. so what i am asking is. when i click on my username
at the right top of yahoo page, the drop down menu appears
but when I move the mouse down to put it over the sign out,
it disappears and I cannot sign out. any one else getting this and what can I do about it? Thanks...Show more

Yes, I'm experiencing this problem also. Very, very frustrating!!!!...Show more