A couple of years ago I created a form with Adobe LiveCycle designer ES2. I then imported it into Adobe XL Pro where I saved it as an extended PDF-version (activate fill in and save). I made a field that generates a 1D bar code when you enter digits. I used the form at work (opened with PDF Reader). Now suddenly 2 years later the box for the bar code is grayed out when I enter something in the box. Oddly enough this only happenes at work with PDF Reader, and not at home. It used to work at both places.