Panel 2d disappear - Tu114

Hello,I migrate many airplanes from FS2004 to the FSX by copy them.But i have a strange problem with the Tu114 from "Samdim Design", it works well but the 2d panel only appears when i undock it to my second monitor. When this airplane load the 2d panel appear but when the 3d outside view completely render, the 2d panel disapear and only exit the outside view and the only manner that i could see the 2d panel is undock it to the second menu!What i must do to fix it in the panel.cfg (the other aircraft doesn't have this problem)Thanks in advanceWith best regardsTercio Sampaio