Missing something bleeding obvious

[ffutures]

Having decided to wait a while before buying any sort of netbook, I picked up a cheap Jornada 728 (the best of HP's hand held PCs) to use as a notebook, and have just got hold of a low power consumption WiFi card for it.

Now the WiFi card is obviously working because the software can recognise several networks. Its monitor application seems to say that it's connected properly. But I can't, for the life of me, figure out how to tell Internet Explorer to use it.

Any suggestions?