I have a Treo 750 that is unlocked and I use between 2 differnt providers.

Cingular when I am in the USA and Telcel when I am in Mexico. I live in Mexico so the majority of the time I m using this carrier.

When I am back in the US, the connect to the cingular server for data transmission works fine as it was originally configured to their network but I can not connect to the Telcel network for data transmission.

Where do I go to change the settings for the data connect? I have the info that I need to put in but can not find where I put it.

Any help out there?