We have a single user who is unable to share any documents from the Desktop Client on Windows 7. He is receiving the error "You do not have sufficient permissions to perform this action". The user is able to share the same file from his Windows 8 device with the same Desktop verison (Version 1.1 19931) and from the WebUI.

I have tried repairing the client. Then deleting the client and reinstalling the client from scratch but this did not solve the issue.

Any ideas?