Windows 8.1 resolution

I just installed windows 8.1 onto my laptop. i have dual monitors but he weird thing is when ever i open up a program and put it onto my laptop screen, the resolution is incorrect. I've already checked Intels screen resolution and windows, they both say 1920x1080 and its only with open program windows, the background and everything else is fine. any one have any ideas what could be wrong?

Did you check your scaling?

Control Panel\Appearance and Personalisation\Display\Change the size of all Items?

One of my laptops was set to a medium scale after the upgrade for some reason.

thank you that worked