>How do I trigger FormA to know that FormB is now gone and I have a change in ReturnValue property

Turn it around: FormB knows when it's done and could trigger what has to be done in FormA.

The most general solution is to pass FormA to FormB, eg. Thisform.oFormB=createobject("FormB",Thisform). Now both forms know of each other and can work together.

Bye, Olaf.