That could be to do with the way the grips are wired in. Did you install the grips or were they on it when you got it? Chris
I think that is quite a common way people do it. I'm no expert so can't give you any advice how to sort it but have a search about sure it's probably been covered before. This thread is particularly helpful, you could maybe rewire your live to the place suggested in here: http://foc-u.co.uk/index.php/topic,5717.msg50182.html#msg50182 Hope that helps, Chris