Airport does something funny after waking up from sleep.

Ok, so I had to send my MBP in to get the hard drive replaced, because it wasnt mounting right. And now that I got it back, I've noticed that airport does something weird after the laptop falls asleep with the lid open. When I wake it back up, Airport shows the normal gray icon(like when airport is on, but doesnt have a server to connect to), but it has a black up arrow on it. When I click on it, it says something like "No server selected", and it doesnt show my wireless connection. I have to shut off Airport, which takes a little bit, then once I turn it back on, it works fine.
Here is a link to a screen shot I took: http://i143.photobucket.com/albums/r157/SeniorRake/UpArrow.jpg

Well that appears to be the explanation that makes sense to me. It also explains why your internet does not work when it's like that. Because if that arrow were there, it implies that you are receiving your internet connection from a source other than airport (i.e. ethernet) and sharing that network connection to other computers in your house via airport.
Here's a picture of my airport when I turn sharing on:
as you can see from the underlying Preferences > Sharing > Internet Panel:
I have set my computer to share my "connection from" ethernet to computers "using airport."
Anyways, check up on it and let me know. I'm curious to see whether this is the issue or not. Later

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This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
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Airport does something funny after waking up from sleep.

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