Hello, I have a laser sight 2.0 and it does not match with a mill end. How can I adjust the position of laser sight? Another issue is if I turn it on, it only stays a few minutes then it dims even with a new battery. I bought it this March, if it has a defect, can I replace it? I sent a message through 'Contact US!' in handibot.com but I didn't get any reply yet. Thanks.by Kw - Handibot Forum