Michael,
Try adding a nodefault to the MouseDown of the Image object:
IF nButton = 1
ReleaseCapture()
SendMessage(ThisForm.HWnd,0x112,0xF012,0)
nodefault
ENDIF
[Update] Just read you already tried nodefault without success, but it should work, at least it works for me <g>
"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