Hi guys;<p>Hoping someone here can be of help. I have an 8 year old Chamberlain 1/3 HP chain drive garage door opener and I've been trying to "train" the homelink button in my new V50. I'm pretty sure that I'm following the instructions pretty faithfully but I'm not having any luck.<p>Could it be that my Chamberlain unit has rolling codes? (no, I don't have the manual, would you keep it for 8 years? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/sly.gif" BORDER="0"> ) Their website is useless (http://www.chamberlain-diy.com/diy04/home/ - I can't find any info about discontinued products.<p>Anyone with a Chamberlain unit they've successfully trained??