Without looking into it, AFAIK, HJ should not be the cause of this - I haven't touched the 2/4 channel selection ioctl at all. The Bass/Treble literally only touch the raw values for the 4 bands that they use - and only when they are activated. The player itself is responsible for providing the values for the eq section - and it sounds like it is providing the wrong values to start with.
_________________________
Mk2a 60GB Blue. Serial 030102962 sig.mp3: File Format not Valid.