i did a quick search and i couldn't see there was a similar problem as to the one i'm having.
my problem is that up until about 3-4 days ago my "set comeback message" for when a person was offline and then the message would be sent the next time they're online.. WORKED, but now it won't deliver the message and i've seen it NOT work. I was online and i had set a message for my bf because i wanted to make sure he got it, i happened to be on when he signed on, but the "set comeback message" didn't send.
also, this has happened more than once and with more than just him.
the msn messanger version i have is 6.2.0137
and the MSG Plus version i have is 3.25.106
this problem just appeared and i've had both versions for a long time now.
i hope someone can help me