Remote Nav 2013 Text Size


A user logs in RDS. On her side the laptop, desktop, applications and so forth, text and icons -  all looks fine.

On the remote side the remote screen  all looks fine, icons, text  and so forth - however when Margo opens Navision the text is very small - almost unreadable. 

From my work computer I logged into RDS as Margo, opened Navision, and all looked fine.

Is there a fix for this user? I don't know the immediate solution.