Advice please - Warning message

[malc-c]

I feel like I've experienced some form of memory loss and I'm having to learn how to ride a bike all over again !

I've breadboarded the circuit as follows:
Pin 20 = +5v
Pin 19 and pin 8 = GND
Pin 1 = +ve via a 10K resistor
Pin 9 & 10 - 4 Mhz xtal with 22pf between pins and GND
Pins 21 - 28 LED with 120 R resistor to GND

When power is applied RB7, RB6, RB4 and RB3 faintly light and appear to be flickering randomly (like a candle effect)

I'm getting 1.25v on the above pins, but RB5 is showing -1.1v, RB2 = -0.8 and -0.9v on RB1 and RB0

Does the 2550 PIC require the USB components connect to RC4 -7 to function correctly ?

EDIT:

Can someone confirm that I have the correct settings in the application and INC files

Program code

@WDT_ON
@PWRT_ON
@MCLR_OFF
@BOD_ON
@LVP_OFF
@CPD_OFF
@PROTECT_OFF
@ errorlevel -202

and INC file (in PBP folder)

        INCLUDE "P18F2550.INC"	; MPASM  Header
        __CONFIG    _CONFIG1L, _PLLDIV_5_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
        __CONFIG    _CONFIG1H, _FOSC_HS_1H
        __CONFIG    _CONFIG2H, _WDT_ON_2H & _WDTPS_128_2H
        __CONFIG    _CONFIG3H, _PBADEN_OFF_3H
        __CONFIG    _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L