VersaLink C7025 Printing onto Letterhead - ERP system and Word print on different sides

Hello

I have an issue with users who print onto Letterhead, the Letterhead paper is in Tray 2. 

We load the letterhead into Tray 2, back of letterhead facing you, top of letterhead towards back of tray.

This prints okay from the ERP System ie: Prints on the correct Letterhead side of the paper.

When printing from any other application, such as Word, it prints on the reverse of the letterhead, so we have to keep flipping the letterhead paper over in the tray each time. 

I have checked the printer driver settings, and all appears okay, and the same printer driver is used by the ERP system as well as Word. 

Any suggestions welcome.

Thanks

Lee