>Thank you for your quick reply. I do have one problem with your suggestion. I am calling Form B through a menu command so the code line 'do form FormB with ThisForm' shouldn't work - should it?

No it will not. I use a couple of function to cycle through the currently open forms and look for a specific form then return an object to it (one searches on form title the other on name) you could use something along these lines to get the Form A object.

Function GetWindowObject
lparameter tcWindowName
local loReturn, i, lnTot
	loReturn = .NULL.
	lnTot = _screen.FormCount
	tcWindowName = Lower(tcWindowName)
	for i=1 to lnTot
		if Lower(_screen.Forms(i).Name) == tcWindowName
			loReturn = _screen.Forms(i)
			exit
		endif
	endfor
return loReturn

HTH