Index: win32ss/user/ntuser/window.c
===================================================================
--- win32ss/user/ntuser/window.c	(revision 59067)
+++ win32ss/user/ntuser/window.c	(working copy)
@@ -3915,7 +3915,7 @@
    // From user land we only set these.
    if (fnID != FNID_DESTROY)
    { //       Hacked so we can mark desktop~!
-      if ( (/*(fnID < FNID_BUTTON)*/ (fnID < FNID_FIRST) && (fnID > FNID_GHOST)) ||
+      if ( (/*(fnID < FNID_BUTTON)*/ (fnID < FNID_FIRST) || (fnID > FNID_GHOST)) &&
            Wnd->fnid != 0 )
       {
          EngSetLastError(ERROR_INVALID_PARAMETER);