Did you perform a factory settings reset option as in CONFIGURATION?
If you did, try a full reset instead:
1. Pull out the power plug
2. Press AND and hold the top 2 buttons (Menu and Exit)
3. Plug power back in AND CONTNUE to hold the buttons
4. After the logo appears let go of the buttons.
5. It may be helpful to grow an extra hand
Full reset clears the memory completely AND does a factory settings reset, loading from the EPROM inside.
My VP30 behaved weird at first because the ABT102D board inside was not correctly seated. Your VP30 may not have this board.