Being asked to improve on a report designed using MS Access, I tried a number of ways, but pleased to see that I can import a set of 'queries' to Crystal, which look like stored procedures, using date parameters and simple outputs. Nothing to link on but shouldn't matter - each entity works for itself, depending on date parameters, set nicely in Crystal automatically. Simple problem is:

where each query has a  fine browsable output from the Field Explorer, but when I put it into the details section, all these fields show blank on the report. How can this be? I may have seen this before, but can't quite remember... Whenever I check and change parameters, the values all change appropriately in Field Explorer, but why won't they show as I drag these into Details?

Thanks