Very interesting.

Confirmed, using that .inc file with the "New Config" style, it compiles to odd bytes.

And for more to ponder ...
I changed the CONFIG's, to the equivelent old style __CONFIG's, and it compiles Even again.

Go figure.
Code:
;****************************************************************
;*  18F4620.INC                                                 *
;*                                                              *
;*  By        : Leonard Zerman, Jeff Schmoyer                   *
;*  Notice    : Copyright (c) 2006 microEngineering Labs, Inc.  *
;*              All Rights Reserved                             *
;*  Date      : 06/05/06                                        *
;*  Version   : 2.47                                            *
;*  Notes     :                                                 *
;****************************************************************
        NOLIST
    ifdef PM_USED
        LIST
        "Error: PM does not support this device.  Use MPASM."
        NOLIST
    else
;original listing below
;       LIST
;       LIST p = 18F4620, r = dec, w = -311, w = -230, f = inhx32
;        INCLUDE "P18F4620.INC"	; MPASM  Header
;        __CONFIG    _CONFIG1H, _OSC_XT_1H
;        __CONFIG    _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
;        __CONFIG    _CONFIG3H, _PBADEN_OFF_3H
;        __CONFIG    _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L
;        NOLIST

	LIST
	LIST p = 18F4620, r = dec, w = -311, w = -230, f = inhx32
	INCLUDE "P18F4620.INC"	; MPASM  Header

    __CONFIG    _CONFIG1H, _OSC_HSPLL_1H & _FCMEN_ON_1H & _IESO_ON_1H
    __CONFIG    _CONFIG2L, _PWRT_ON_2L & _BOREN_OFF_2L & _BORV_0_2L
    __CONFIG    _CONFIG2H, _WDT_OFF_2H & _WDTPS_32768_2H
    __CONFIG    _CONFIG3H, _MCLRE_ON_3H & _LPT1OSC_OFF_3H & _PBADEN_OFF_3H & _CCP2MX_PORTC_3H
    __CONFIG    _CONFIG4L, _STVREN_OFF_4L & _LVP_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
    __CONFIG    _CONFIG5L, _CP0_OFF_5L & _CP1_OFF_5L & _CP2_OFF_5L & _CP3_OFF_5L
    __CONFIG    _CONFIG5H, _CPB_OFF_5H & _CPD_OFF_5H
    __CONFIG    _CONFIG6L, _WRT0_OFF_6L & _WRT1_OFF_6L & _WRT2_OFF_6L & _WRT3_OFF_6L
    __CONFIG    _CONFIG6H, _WRTB_OFF_6H & _WRTC_OFF_6H & _WRTD_OFF_6H
    __CONFIG    _CONFIG7L, _EBTR0_OFF_7L & _EBTR1_OFF_7L & _EBTR2_OFF_7L & _EBTR3_OFF_7L
    __CONFIG    _CONFIG7H, _EBTRB_OFF_7H


;	CONFIG OSC = HSPLL, FCMEN = ON, IESO = ON, PWRT = ON
;	CONFIG BOREN = OFF, BORV = 0, WDT = OFF, WDTPS = 32768
;	CONFIG MCLRE = ON, LPT1OSC = OFF, PBADEN = OFF
;	CONFIG CCP2MX = portc, STVREN = OFF, LVP = OFF
;	CONFIG XINST = OFF, DEBUG = OFF, CP0 = OFF, CP1 = OFF
;	CONFIG CP2 = OFF, CP3 = OFF, CPB = OFF, CPD = OFF
;	CONFIG WRT0 = OFF, WRT1 = OFF, WRT2 = OFF, WRT3 = OFF     
;	CONFIG WRTB = OFF, WRTC = OFF, WRTD = OFF, EBTR0 = OFF
;	CONFIG EBTR1 = OFF, EBTR2 = OFF, EBTR3 = OFF, EBTRB = OFF
	NOLIST
    endif
        LIST
EEPROM_START	EQU	0F00000h
BLOCK_SIZE	EQU	64