My sister just got this phone and it is using way too much data. She only gets the 200mb/mo plan and never used over 100 with her old HTC WP7 phone. She went on the TMobile website and it showed that there was heavy usage while she was sleeping... like 30megs some nights! Does anyone know what is causing this? I have my phone on another network with unlimited data so I never had to deal with this. Do I need to root it? Does anyone know if there is some carrier bloatware that uses heavy data? Thanks in advance.