legowland

Hi, I just purchased the HX Effects. On one of the patches I set one of the foot switches to change the channels on my amp (Marshall DSL). It seems the polarity of the switching is in reverse, i.e. when switch is off the lead (red) channel on my amp is selected, and when the switch is on (lit) on the HX the amp channel changes to my clean (green) channel. It's not the end of the world but it is counter intuitive so thought I would ask in here if there is a way to alter this. Thanks.