>Hmmm...doesnt seem to like that. Of course it doesn't like what I'm trying either...this is what I've got:
>

>     IF MOD(nR+nG+nB,2)=1  && Pixel Sum is Odd, convert to White
>        SYS(2600, nOffset+nPos, 3, 0hFFFFFF)
>      ELSE  && Pixel Sum is Even, convert to Black
>        SYS(2600, nOffset+nPos, 3,  0x000000)
>      ENDIF
>

You are close, just use 0h000000 (varbinary) instead of 0x000000 (integer)