I do not know if there are side effects, but "Thisform.Show()" in the Deactivate event seems to do the trick. (Assuming you are not interested in any other form... which is unlikely... disregard my message ... sorry...
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges