If you have a mac and use wireless to connect, you might expect that it will automatically join your wireless network after you tell it to “remember this network”. I know on my old powerbook it did, and on my girlfriend’s macbook it auto-joins too. So I started wondering why my macbook pro just wouldn’t do it. I searched the keychain and found my network in the login keychain, so I thought something really bizarre was going on. When I checked console (the console app in /Applications/Utilities) it said my network wasn’t in the system keychain!
To make a long story short (as my mother would say), I found a solution here: http://discussions.apple.com/thread.jspa?messageID=6757490
It turns out that when I moved System Preferences to /Applications/Utilities it broke my mac’s ability to add networks to the system keychain! I moved it back to /Applications, deleted the network from my network preferences and keychain and then joined the network again. This time the network was added to the system keychain and all is well!
You have a girlfriend?