Can't get internet to work on brand new phone.

[tstretch]

Hey I just got a new factory refurbished TP (this is my 7th one since January - talk about bad luck with hardware!) and need some help big time!

I used Sprint.com's Activate A New Phone functionality to swap this new phone for my broken one and got phone calls working fine. But I can't get any data connectivity... Last nite I was trying this with the stock Sprint ROM and couldn't get anything so I thought maybe it just needed some time. It never ended up working though. In the mean time, playing with it, I ended up flashing the phone with it with MightyROM6 and still no internet... I think WiFi works but not Sprint's connection..

Any ideas?