mrdomino:
I know I already explained this to you over PM, but I'll say it again so that everyone can see.
To answer your question the "E" icon on the top indicates that you are in an area where there is EDGE (or MediaNet service). If you see a G that means you are in an area that has GPRS service. GPRS is a bit slower than EDGE but it still is MediaNet. Most metropolitan areas have EDGE readily available.
You will not get charged by Cingular if you use WiFi instead of MediaNet, however not all WiFi hotspots are free, you may have to pay for some of them depending on where you are and what they have set up. If your Cingular 8125 still asks you to connect to MediaNet it might be because the WiFi hotspot that you are connected to does not have a stable Internet connection.
But if you know for a fact that you are using the internet via WiFi then just ignore that message.
Anytime you are connected to MediaNet and you are using the Internet (i.e. checking e-mail, browsing the web) then you will incur charges through Cingular.
A great program I like to use for "trolling" is called miniStumbler. Check it out
here.
If that doesn't work, you can always try
WiFiFoFum.
To disable MediaNet on your Cingular 8125, just go to Start>Settings>Connections Tab>Connections>Manage Existing Connections>the tap and hold the MediaNet connection and select delete. That should do the trick.
I hope this helped you in one way or another. Thanks again for your questions!
-Tim