Hi,
If this is with a version prior to PBP3 you must, if you want to have the CONFIG in your code, comment them out in the .inc file located in your PBP folder.
An laternative options is to edit the default CONFIG in the .inc file instead of commenting it out and putting it in your code.

For the 16F88.inc it looks like this
Code:
        NOLIST
    ifdef PM_USED
        LIST
        include 'M16F88.INC' ; PM header
        device  pic16F88, hs_osc, wdt_on, lvp_off, protect_off
        XALL
        NOLIST
    else
        LIST
        LIST p = 16F88, r = dec, w = -302
        INCLUDE "P16F88.INC" ; MPASM  Header
        __config _CONFIG1, _HS_OSC & _WDT_ON & _LVP_OFF & _CP_OFF
        NOLIST
    endif
        LIST
So either put the CONFIGs you want in there, or comment that line out and put them in your code.

If you're using PBP3 then open the manual and have a look at #CONFIG / #ENDCONFIG

/Henrik.