Don't know what kind of problems you're having. I'm working with navi graph with no problem at all, my Saitek were recognized by the sim when i plug it on the USB, didnt have a single crash so far. Btw, fly on vatsim is costing me something about 10/15 FPS, but thats a problem that Microsoft will solve soon - at least that was what Vatsim says. You can fly anything you and and do as you please, but I think you should see if your software is up to date, that could be cause a lot of your problems. I got a NVIDIA Graphic Card, for example, and they did a update for MSFS on the day of the lauch. Check that, this could solve some of your problems, mate.