I don't think the PMDG ought to be that precise, but if it is...*******!...it would just confirm once again how awesome this addon is...the best in FS history I'd dare to say. The other day I was flying from EHAM to EGGW and just before entering the runway I got a doors message master caution.- I was like: "what the heck!?" Doors were closed and pressurization was normal. I thought it was a bug. This actually happens sometimes in the real plane due to obstructed or dirty sensors and FCOM recomends to continue normally if pressurization is normal so I did and it was an great flight and the master caution disapeared after 1500Ft. Thanks PMDG for such an awesome product! Now if Geir PG achives a side by side resonance between NGX operation in the matters of N1 based on aircraft physical state and the real aircraft provided it is just a bug and the assumptions are correct, I'll just ###### my pants. Can't wait for the 777! I wish you guys made an Airbus too! Cheers,Fernando A very happy PMDG custumer