Sony Ericsson K750 / W800 / D750 / W700

Thanks headbub! Actually, the day after I posted this message, I found the settings! I have HORRIBLE reception in my area though. I've had my K750 for 3 days now (6/21) and it's been the same since I've bought the phone. I just signed up with T-Mobile a week ago (6/17) and bought a used phone because I wanted to see what coverage was like in my area before I purchased a more expensive phone. The used phone I bought was a Samsung SGH-r225. That phone consistenly had 5-6 bars of strength (mostly 5 bars) so naturally I was pleased and thought the K750 would be just at least as good if not better -- seeing as how it was newer with better technology. My K750 only keeps 2 bars -- both phones support only the GSM 1900 and the place where I bought the phone said once the phone is opened, they will not accept returns. Sony told me to ship it to their repair center in NC where they will have the phone for about 2-3 weeks (which I REALLY don't want to do) but don't think there's another choice.

Has anyone else experienced poor reception with their K750 phone?