I have an Inspiron 1750.  Every time I start up, I get a little box at the lower right:  "Intel My  WiFi Technology:  Adapter not found."

Now, the Intel My WiFi Technology applet in Control Panel says that "A supported Intel wireless network adapter was not found on this computer." 

However, the Device Manager (Network adapters) says that the Intel WiFi Link 5100 AGN is working properly.

I'm confused.  What is going on, and what should I do, if anything? (I am typing this on a wireless network).