Hello, for some reason, my metronome does not follow the tempo of my Sapphire Pro.  It is completely off beat.  I am using the Sapphire as my clock, perhaps I am missing a setting somewhere? 
 
Also, I have tried to change the tempo of a song by simply changing the tempo speed, but it only effects a few measures and not the whole song.  Is there a simple way to just change the tempo of a song.  I know I used to be able to do it easily in older Cakewalk programs.
 
Thanks for any help,
Art.

Tempo changes persist until the next change is encountered. If the initial tempo at 1:01:000 is not persisting, there must be another tempo change later on. Check Views > Tempo to find and delete that change.
 
But I'm not sure what you mean about the project tempo not following the "tempo" of your interface. The interface just provides a clock signal that gives SONAR an absolute time reference; the interface doesn't know anything about musical tempo.
 
If the metronome is out of sync with the audio, that just means the M:B:T timeline isn't aligned with the audio. That will happen if you change the project tempo after recording audio to a click at another tempo. You would have to enable autostretch on the clip for it to follow the tempo change.

Thank you for your help, but for some reason last night, I opened up the program and everything started working perfectly!  No latency with ADD or any other soft synth, and the metronome was in time with the click track I have been creating to maintain tempo.  I don't know why, I haven't updated anything in the last few weeks, but I am not going to ask as long as it keeps working!!  Have a great Thanksgiving all!!
Art