[Reposted from Main Edition Board to KDE]
I recently installed Mint 12 KDE 64bit on a Lenovo ThinkPad 0579-A62. In the last day, I noticed that the system tray icon for the Network Management Settings now displays a red box with a white X, and says "No Network Interfaces", yet I am still successfully connected to WiFi internet. Clicking on the icon shows an empty list of connections, and the option for adding a connection is unavailable. Notably, I restarted, and again, when clicking on the icon, not only is the list of connections empty, but the checkbox for "Enable Networking" is also unchecked at startup. Checking the box after booting makes no discernible difference. I am still connected to the internet wirelessly, but with no way to manage my connections.
While I have previously tinkered with Mint 10 and Ubuntu 10.04 on my other machines, I am still relatively a n00b to linux and evenmoreso when it comes to navigating KDE. Any help would be appreciated.