I just got a BB Style not even a month ago and im already having problems. I turned off my phone one day while at school and then when i turned it back on the screen came on for about 4 seconds and then went off. The screen isn't cracked and the phone still rings but i cant see anything.ive tried resting it a lot but it dosent work. Is it in some type of sleep mode or something? i don't know please help.