My wife and I use what was iChat a lot. She upgraded her laptop to Mavericks, while I have not yet. Now, on her new "messages" app, whenever she sends me a message, there is no telling if it will go to my phone or to my laptop. It seems extremely random. Is there some way to tell messages to ONLY send to my laptop? Or is this just a new feature where it's sure it knows what you really want?