Problem with Blackberry and MTN

[Vox Populi Vox Dei]

So my (refurbished) Blackberry has now suddenly decided to have the browser configuration set to "MTN GPRS" instead of "Internet browser". This means I am getting charged every time I use the internet. However when I try to change to "Internet browser" and select "Save Changes", it reverts to MTN GPRS. It does not allow me to select "Internet browser".

 

[sanimoyo]

Go to Options > Advanced Settings > TCP/IP and in the APN field enter 'blackberry.net'