I use a bb 9860. After my last mtn sub few days ago. I noticed I can't download large files like movies. Or even a 25mb app. Av deleted my opera, downloaded it again. Someone shud pls help. Browser downloads but u know the drill, once network flaunts it writes error. And every other data uv downloaded before then is goodbye. Someone shud pls help, av called customer care but they said its not from the network but the phone, what and wat shud I do to get it working again plss. HELP.