If it's Yahoo IM, then you just send them like you would if they were on line. I'm not at all familiar with mac, so I'd guess it's either something with mac or the friend thinks it's some kind of pop up and closes it automatically without reading it.
Tell them to watch for one and exactly when you're going to send it.
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If it's Yahoo IM, then you just send them like you would if they were on line. I'm not at all familiar with mac, so I'd guess it's either something with mac or the friend thinks it's some kind of pop up and closes it automatically without reading it.
Tell them to watch for one and exactly when you're going to send it.