I'm using JetForm Designer 220.127.116.11 to create an mdf that is then copied up to the as400 file system. There are some older mdfs on the as400 created by an earlier version of JetForm Designer (not sure which version). Those older forms merge and print fine. However the form compiled with 18.104.22.168 print a string of non-alpha characters at the top of the page with no data merged into the fields on the form. The form desingn itself prints fine (but no field data). Could it be a compatability issue with the as400 jfmerge and Desiger 22.214.171.124? The Jetform software on the as400 is about 5 years old. Thanks for your help.