Bramstenga, did changing the "control panel" solve your issue? Could you share who you sent the lens to (ie, if you're in the USA).
Axutin hasn't reviewed this thread in a while - I hope you do.
To the OP - I hope you're still following this thread.
I have a very similar issue with my 200-600G.
Did you send it in to Sony for repair? If not, would you provide the store/person who repaired this for you.
Thank you.