03-12-2010 08:07 PM
Hi and Welcome to the Forums!
Anytime random strange behavior or sluggishness creeps in, the first thing to do is a battery pop reboot. With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes. 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.
03-15-2010 03:41 PM
Did you install anything new just before this behavior started? A new theme? Some app? An update? The tiniest thing could be causal. If so, undo what you did and see if it's cured. If not, then consider reloading your device OS from scratch:
Is your BB device OS up to date? Check your carriers download site:
Consider warranty evaluation.