MIDI Clip: Wrong Position after move

Okay.. Its very hard for me to explain, but I try:
 
I have play a part into Sonar X3 Studio with my Keyboard. After that, I would like, that all notes are Quantized, because they are played a little bevor the Beat is.
 
So I mark a Clip and hit "Q" for Quantize. I leave all like it is an choose just "Duration" to 1/4 (or something I need) and after that all notes are perfectly arranged. OK. All works fine till here.
 
Now I want to Move the Clip to a new Position, or Hit STRG too, to Copy an Clip.
And now it is, that the Clip is not on a full Beat, but a little After: I think exactly the Position, the quantize moved them to the Left..
 
It is like the Notes will Quantize, but the Clip himself has his "old Size", so the notes I play bevor is now an "Empty room".
I can Choose the Clip and grab one Note and move them to the right Position, or Quantizied again, But its bad work :)
 
So, maybe someone can tell me, what is my fault on my Working-Steps?
How can I "cut" the Clip, that the First played (qantizied) Note is the Beginning of the Clip, and not the Note I played first.
There are no other Events I played, like Sustain.. (Or I See nothing like this).
 
Maybe you can tell the Chapter in the Manual, that explain that, so I can read it in german, if its all to hard to understand :)
 
Thank you for your Help
 
Andreas

- I recommend you quantize only Start Times, and not Durations (Length).
- Then read the section of the manual on Snap Grid (page 370 in the English X3 Ref. Guide).
- To move or copy a clip to another track or lane without altering its start time, hold Shift while dragging.
- If the clip has blank space in it after editing for whatever reason, you can use Clips > Bounce to Clip(s) as suggested, or right-click and Apply Trimming (usually less destructive). If you still see some apparently blank space, it's probably because a Sustain or other controller event at the end of the clip is not clearly visible.