Problem with outlook

Can anyone help me? Recently upgraded to Windows 10 from Windows 7. Everything fine except my emails. When I type an email and save it to drafts and then open it up to edit it, the existing script is minute so much so I am unable to read it. The same thing happens when I hit the reply button on an email that I have received. No idea how to rectify this! Can anyone help.

Poster :
Johnny Trini