My Xperia X10 phone's android market isn't setting up when I sign into gmail. It says that it can't establish a reliable data connection to the server and that it could be a temporary problem or your phone may not be provisioned for data services. I tried four different connections but they just don't work. This happened after I upgraded the software to 2.1; before that I was able to register my phone and download from the droid market but now, neither works.