1) Create a new instance in VE Pro or VE PRO Server
2) Insert Kontakt 4
3) Resize (little triangle in the lower right corner) the interface to your liking
4) Now try to resize it again...
NOT possible... You have to close the session and re-open it to be able to resize the interface again.
Note --- You can enter the K4 options and select Small, Medium or Large and it WILL resize but you cannot
grab the handle and set it to the size that YOU want