Penda,
This is a foxpro runtime "feature" that has been around for quite some time. I've never found a workaround. Notice that if you open up the dataevironment, the fields will then show up in the expression builder.

Murray

>Thank you for replying. We use a standard report template.frx and then copy it to a temp file which is then updated programatically. The report template is not compiled into the project it is distributed seperately.
>
>The problem is that the datasession information that is being added to tell it where to pick the data cursor source up from is not being picked up at runtime and the expression builder shows no fields from the data source.