[Danny1254]

what you want to do is a full reset. But before you do this:
go onto your computer
plug in your phone via USB drive
select USB Drive on your phone
make a new folder
drag and drop EVERYTHING from your pre to that folder ( for a failsafe)
then go to device info
press reset options
press full reset.
this will delete everything that is causing you any problems. The only bad thing is you jave to drag and drop your songs back onto your pre and go through all of the set up you went through when you first got your phone.