JohnBonesDoe
1) has anyone experienced SONAR changing driver modes on it's own? I used ASIO in X3e and it changes itself to MME(32bit). I just checked it by opening a project and it stayed ASIO.
Yes, SONAR will do that if it can't find the ASIO interface for some reason. This could be due to several possible issues, like plugging a USB ASIO interface into a different USB port than was used for installation, bad USB cable, not having an updated driver, something else grabbing the ASIO driver so it's not available to SONAR, USB hub suspending power and going into a "sleep" mode, etc.
For a fix, I'd recommended checking again for updated audio interface drivers, making sure the interface is plugged into the same port in which it is installed, having the interface turned on before you open SONAR (unless that's the problem, in which case turn it on after opening SONAR) and checking whether it's feeding a USB SuperSpeed (3.0) port or USB 2.0 port. Some USB 2.0 devices work well with USB 3.0, some don't. Also, some USB 2.0 devices I've had that were problematic worked perfectly with 3.0,
although the manufacturer told me their chip set was incompatible with 3.0. Argh. Also some USB devices need to be turned on before the computer is booted, with others it's after the computer is booted.
Sorry to be so vague, but that's a rundown of some of the issues I've encountered with USB over the years. Oh, and never use a hub or powered hub with an audio interface. Use a port on the motherboard itself.
2) Has anyone experienced the freeze feature going very slow for each midi track that is frozen?
Not really, but not sure how you define "slow." One of the most interesting issues of all time was when someone found that freezing tracks with Kontakt took literally hours. He was super-frustrated. It turned out the problem was - get this - having a CD (or maybe it was a DVD) in the optical drive. As soon as he removed that, no more problems.
Looping back to the initial post/response, so many times the "problems" people have with SONAR relate to Windows or some other element, but the first thing they do is assume SONAR is the problem. That can take the form of rants, which doesn't help, but a lot of times these people assume the first thing they should do is re-install SONAR, which doesn't help either.
The good news is once you get a system tweaked, it will usually stay tweaked and not give you any issues. I'm now into my first month of Platinum without a crash or freeze, which seems impossible to me but believe me, I'm not complaining. I can only assume I'm not being hard enough on it. Give me time.