When my Bberry started acting funny tech support said
take the battery out and start it up again.
This has been my go-to solution for anything my computer balks at;
turn it off and turn it back on.
It works most of the time.
Also - it works with me. And that's the hardest one to remember; the need for time when I'm OFF.
The time when I quit pushing the ON button into the ground
and just drift - let the secret re-charge molecules find their way in.