My treo unlocked 650 GSM still under warranty (ATT but now Cingular), is having problems. Palm won't help a bit so they referred me to Cingular who are actually very helpful. They want to send me a warranty exchanged (refurbished within 24 hr..which I have done before for other phones and they do look good) I just want to make sure they do indeed send me an unlocked GSM....how do I make sure they do that is there something on the phone to check? Thanks in advance