My Mathcad 14 files became distort after I got the bigger monitor. Text regions shifted from math regions. Why that happen?
What screen resolution are you using?
At which zoom setting within Mathcad are you working?
Mathcad has a poor algorithm to decide how much space a string of text takes.
Zoom is 100%. When I change it, everyting changes proportionaly: text and math regions.
One thing I have to do on my computer with Mathcad 15 is right click on the Mathcad icon in the start menu and navigate to open file location. Then right click on the icon or file that it brings you to and go to properties. Then find the compatibility tab and go to 'Change high DPI settings'. Click on override high DPI settings and select the application option. I have a 1920x1080 screen with 150% scaling in windows. Using the aforementioned option helps Mathcad look more normal for me. Not sure if it will help you or not though. Worth a try. I do still have graphical issues though. However, this helps some.
I should mention that I had this problem when I switched from a 720 screen to a 1080 screen. I also had the problem with a few other apps. It seems like everything worked great with 720 but switching to 1080 has been a nightmare.