01-20-2014 11:08 PM
Hi and Welcome to the Community!
Anytime random strange behavior or sluggishness shows up, the first thing to try is a proper reboot:
See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.
Otherwise, since it is so new, you might have a defective one...you should seek formal warranty support as per the terms of your device purchase contract.