Sorry I didn't post my solution sooner. Turns out that (I use Word as editor for Outlook), for some reason after using Ccleaner the "Magnification" percent was raised to 200%. So every time I replied to an email, it used Word, and everything was twice as large as normal. Changing the % in Outlook did not help, but opening Word, create a document, set Magnification to 100%, then saving the document, made it keep 100% as the default, and problem solved.
Sometimes it's the simple things taht drive you crazy, as you look for some tech heavy solution.
Tom