Alan,

> I know they're not required, but in all my reports which use
> IBO (TDataset)
> components, unless I persist a field which another datasource
> expects to
> source FROM, then the sourcing fails. The query itself is
> fine, but the
> sourcing fails.

I would consider this a bug and will fix it if you send me a sample app that
demonstrates this problem. I would work on it but I hunch I could easily
find myself chasing my own tail.

Thanks,
Jason Wharton
www.ibobjects.com