Things will happen like this, but soon be resolved!
Where did your blackberry come from? (Store?)
Has it come into contact with moisture? Water? Or had in the the bathroom while in the shower? :etc?
It may be that you need to reboot and start softly for a while.
If thats STILL happening, you should try and get a refund, our try to find
a cheaper blackberry in stores.
Hope it helped!
Thanks