Users are complaining that everytime they open an attachment, they are warned that the file is Read Only. Why?

Some programs its not a big issue, just says Read Only on the title bar, but others prompt the user "You are opening a Read Only document, make sure to save it with another name, etc"... higher ups are getting annoyed

Why is this happening now with GW8?

FYI if you right click and hit "edit" you do not get a read only message.