Hans,

AFAIK, we don't have access to the function that generates that ckval field. It is not sys(2007)

>what we tried to do was to create a program that modifies the foxuser so that we could remove or add the print button at run time (=when launching the application) from the "Print Preview" toolbar. So we took the data from the "Data" field in the foxuser.dbf for the "Print Preview" record, while the button was removed and we tried to write this data into the foxuser.dbf, but this doesn't work. We think it might have something to do with the "ckval" field.