Hi, I have an unlocked Atrix MB860, running 2.3.6/AT&T 4.5.141. It's been working flawlessly on Rogers in Canada but now I'm in Colombia using a Comcel prepaid sim card. It prompted me to add access points and I did, and I have data for browsing but not for email, or other services like updating, google talk, facebook messenger etc. The sim is from a USB modem which has data and texting capabilities. These functions still work on wifi. Is there something else I have to do to get this working, or is it possible the prepaid sim just doesn't allow this? I would think data is data and that it would let me connect to other servers. Thanks and sorry if this is a noob question but I searched and found nothing.