Scratching my head....

I'm having a couple of issues that I can't seem to resolve. Some are with the simulator itself, some with add-on aircraft.
[*] I can't adjust the simulation rate. I've tried mapping the command to different keys and so far no result. I really wish it was just part of a dropdown menu like FSX but I guess that would make too much sense. Has anyone gotten that to work, or is that functionality disabled?
[*] In the Carenado Mooney M20R Ovation, the radio keeps shutting off and I can't get it back on, leaving me completely unable to talk to ATC. I haven't set any failures in the aircraft. Is this a known issue or am I doing something wrong?
[*] In the Kitfox, ATC won't pronounce the manufacturer and model, just my tail number. I looked for the aircraft.cfg file to see what the issue was but there doesn't seem to be one. Where can I go to fix this?
[*] Autopilots don't seem to work well, assuming I can get them to work at all. I've heard there are some bugs associated with them, but I also can't help but wonder if I'm using them incorrectly. In particular I'm confused about the LNAV, VNAV, and FLCH modes, and how they interact with the older modes that were present in FSX. It also seems that the Altitude Hold mode puts me about 100 ft higher than what I've selected. Not a huge deal, but I do find it annoying. EDIT: ALT mode appears to have fixed itself. Weird.
[*] I can't adjust the simulation rate. I've tried mapping the command to different keys and so far no result. I really wish it was just part of a dropdown menu like FSX but I guess that would make too much sense. Has anyone gotten that to work, or is that functionality disabled?
[*] In the Carenado Mooney M20R Ovation, the radio keeps shutting off and I can't get it back on, leaving me completely unable to talk to ATC. I haven't set any failures in the aircraft. Is this a known issue or am I doing something wrong?
[*] In the Kitfox, ATC won't pronounce the manufacturer and model, just my tail number. I looked for the aircraft.cfg file to see what the issue was but there doesn't seem to be one. Where can I go to fix this?
[*] Autopilots don't seem to work well, assuming I can get them to work at all. I've heard there are some bugs associated with them, but I also can't help but wonder if I'm using them incorrectly. In particular I'm confused about the LNAV, VNAV, and FLCH modes, and how they interact with the older modes that were present in FSX. It also seems that the Altitude Hold mode puts me about 100 ft higher than what I've selected. Not a huge deal, but I do find it annoying. EDIT: ALT mode appears to have fixed itself. Weird.