Inserted lightroom 6 disc on my IMac, accepted the terms, etc. and typed in serial number but installation process won't continue . there doesn't seem to be any numbers missing. It is same number on original box and in reseller's (B & H) sales receipt. the dialog box only highlights "back" instead of "next". there is no other number, wha@t to do??
Please read this: Find your Adobe product serial number quickly
If you have a "redemption code" on the box, you must go to the Adobe web site to convert it to a serial number.