I think I have it sorted. I found the right tutorial. Maybe the pitch center and/ or pitch drift were set wrong. Both values normally default to 0 which seems to allow independent movement of blobs.
 
All I know is that it's working fine now.
 
And kudos to Cakewalk for including that with X3 ;)
 
[edit] Here's the link to the tutorial if anyone's interested ;)
 
[link=http://helpcenter.celemony.com/hc2-content/melodyneessential4/en/m4firststeps_01_essential.html?edition=melodyne-essential&docTypes=anleitung~tutorials~tipps-info&lang=en&sort=RELEVANCE&grouped=false&query=&showStartPage=true&showStartPage=true]http://helpcenter.celemon...amp;showStartPage=true[/link]

Glad to see you were able to work it out!