Why does Sonar X3 do this.  All of a sudden without warning, without changing ANYTHING, it starts entering these little nonsense events, and NOT NOTES!  How do I fix this.  PLEASE HELP NOW! Please?
KC
 

What is showing in the Event List?
 
Where are you seeing these events?

See discussions about "too many midi clips".    Imo, when sonar has more "clips" than it can handle, it goes weird.    Has done it for a long long time.     Some coder, 10 years ago, used a fixed size array?  Which is over-run and affects other things? edit -- no not ten years ago, more like 15-20 years ago.

I think we need to hear back from the OP about what his specific issue is.