This is why I use a Cateye wireless computer it works great.And my cateye light right by it too.I was going to go wired but my LBS said this one would work good so far he has been right.I have heard a lot of bad things about Sigma 1606L doing just what you said your did.But I would try to get my light away from my sigma160006L to see if that would help.If you have a front rack you could mount your light there that would move it as far as it could be from your sigma1606L.
My 2 cents
Last edited by KDC1956; 12-03-09 at 09:55 PM.