Hi George,
I am so sorry you are having a tough time seperating your cartons.
If you find you are having trouble de-nesting, try de-nesting them in counts of 5-10 before separating them individually. The best way to de-nest these cartons is to gently shake them apart, rather than pulling them.
It is recommended to grab the bottom of the carton and the posts and shake them, rather than grabbing the sides or front flap.
If these tips/tricks do not help you - please let us know.