FS Passengers & PMDG Key assignment Problem

Hi there,just baught FSP and everything is fine...everything except one issue with the PMDG 736Since i installed FSP and buyed that Aicraft I cannot use any keyshortcut for the PMDG. No F-Keys for Flaps, no G for Gear nothing... i have to do everything by clicking in the 2D-Pits... That's not very nice... I already asked at the FSP Forum but no real help there. Just before installing FSP I reinstalled the P737. I already reseted the FS keybindings to default and deleted all FSP Keybindings...no effect. Every other aircraft works fine, no matter if free or payware.Any help on this one?MfGJohann (Don't look at my nickname...don't know when or why i choose that one)