Hello, Sorry My English. The SAITEK problem will be solved? "The only major outstanding item that I would consider to be problematic is the method we are using to interface with the Saitek rudder hardware". And the problem of IvAp? "The PMDG 737NGX is fully compatible with FSUIPC except thatwe recommend that you do not calibrate ..........We continue to explore ways to make the PMDG 737NGX interact moresmoothly with FSUIPC and we’ll make those changes available as theyare finalized. Both FSUIPC and the PMDG 737NGX are trying toaccomplish the same goals and following the above recommendationsshould keep you out of trouble"the best beta testers are users. Ticiana