|Everyone are admins on their pcs? Someone doesn't know about security. Guess they will find out the next virus/malware that blows thru your facility.|
You never want to run under a admin account because rouge programs can use your privledged account to directly access system files.
I still don't know WHAT account the share was shared to with full privledges. Everyone?
Usual fix for such situations is to remove and recreate the share. I would suggest you review the setup of a share on another pc that is working and assign rights the same way to your new share.