Repost of "kCreepingWindowClass" If I thought this was a FB 'feature', I'd keep it off the list but would some kind soul mail me privately with the result of this test? With OS X 10.2.8, FB^3.7, creating a window of type _kFloatingWindowClass shifts the window down by 4 pixels. i.e. specifying a rect of (l,t,r,b) 50, 50, 300, 300 creates this type of window at 50, 54, 300, 304. I have no way of checking myself but apparently this doesn't happen with OS X 10.3, FB^3.8. Is it the same with OS X 10.3, FB^3.7? Thanks Bernie Floating window creep test: '~'A ' Runtime : Rntm Appearance.Incl ' CPU : Carbon '~'B local fn RefreshWnd dim as rect r dim as WindowRef @ wRef get window 1, wRef fn GetWindowBounds(wRef, _kWindowContentRgn, r) print r end fn local fn DoDialog dim as long ev, id ev = dialog(0) id = dialog(ev) select ev case _wndRefresh fn RefreshWnd end select end fn dim as rect r SetRect(r, 50,50,300,300) appearance window 1, "My Window", @r, _kFloatingWindowClass on dialog fn DoDialog do HandleEvents until 0