Didimo,
I appologise for your problems, this sort of problem is becoming more and more apparent but unfortunately we are not able to a great deal as we are not aircraft modellers, we have to rely on freeware that is in the public domain and "freely" down-loadable.
Robert and his team (Tamas & Janos) try to ensure the freeware models we use are of the highest possible quality but we are limited as high quality freeware panels are not in abundance for airliners.
You can try looking in the forums at BSMP who make that aircraft, others may be experiencing your problems and fixes may be available:
http://www.bsmp.co.nz/Let us know if you have any joy with that.
If you know of any good replacement panels or aircraft, please feel free to contact robert@fly-euroharmony.com as we are constantly on the lookout for new content and equipment.
Again, our appologies for your problems, I am sure you will be back in your beloved B737 before you know it! Once you make the progression to jets and you have the ability to start flying longer flights in aircraft like the E170, Fokker 70, EMB145 & Bae 146 (I suggest you stay away from our Falcon 50 as from your prior experiences, I have a feeling you will hate this plane!) the hours will fly by and you can start flying mission and tours to help build your log book up. We also have a few new things coming up for Christmas that may just be right up your street!
Enjoy, stick with it, it will be worthwhile in the end!