Now this is flashing over and over again when I am in network settings.

"Your network settings have been changed by another application.
any changes you have made will be lost."

And in network status the airport is flashing between:

"Airport is connected to the network. Airport has a self assigned IP address and my not be able to connect to the internet."
...to...
"Airport is turned on but is not connected to a network."

I'm tired of trying to fix this. I'm thinking to archive install or reinstall the osx, reformat my disk. Any other ideas?