>>If you set your subform to use Default DataSession your life would be >>easier. When it is launched from a Private DS form it will be running >>inside the DS of the launching form.

That's what I had thought, but when I initially tried that elsewhere it did not work (I must have got something wrong elsewhere).

However I discoverred that in my example form3 has default datasession, then the .BindControls=.T. does not error!

Still think this is a VFP bug, but at least I have it working now.

Many thanks guys


Gary.