Returned the unit, guy though it was an antennae problem and replaced it with a T-Mobile Vibrant, which had great reception, but lacked the front facing camera. Have returned that to and am waiting for either the unit to be repaired or a replacement unit sent out.
Just curious though, the stock Galaxy S had options to disable GSM or WCDMA, but the Vibrant had options to use 2G only. The frequencies/protocols on the Galaxy supposedly match Vodafone fine.
Is there a potential compatibility issue with the version I'm getting? Anyone else get a similar unit and have great reception?