MoveToScreen seems to always move the window to the current page. I can't move a window from one screen to another without putting it on the current page (and desk). This is with an empty config file.
$ fvwm -V fvwm 2.5.27 compiled on Mar 9 2009 at 10:06:25 with support for: ReadLine, Stroke, XPM, PNG, SVG, Shape, XShm, SM, Xinerama, XRender, XCursor, XFT, NLS -- Thanks, Jonathan Kotta Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.