Cut and paste from manuals or the BB web site. Nothing more.
John Price - you may want to backup, wipe out the BB and reload the OS onto the 8830.
If the problem persists after reloading the OS, then it is hardware. If not, then it was a software problem (only can be one of two, right)
If you want to do this, first download the latest handheld OS (see the sticky). Back up your data completely, and then follow the instructions here How do I wipe the BlackBerry using Jl Cmder? - BlackBerryFAQ
to the letter.