Hi Guys, I Have a Question, Regarding My Note 2

Screen Freeze on Samsung Note 2

Why does my screen sometimes freeze? Once the screen freezes, I can only access by voice command. It usually freezes after being carried in my pocket. On another occasion it was after I left it in my car for a couple of hours. To restart I have to remove the battery and restart by using the three point start. This doesn't always work the first time, sometimes I may have to repeat this process numerous times.

Last time it was off for 2 days, the only way I could restart was to do a complete reset. Quite frankly it is very annoying.

Does anyone know what the problem could be? And how to fix it?