Not an expert, but I stayed at a Holiday Inn Express last night.
You didn't say what Operating System you were using, but I would think that your Display Options would allow you to switch from one to the other without hardware changes. I run both at the same time actually. I have a widescreen laptop and a "square" Flat Screen and I use both simultaneously, side by side.
The only difference is the Desktop picture. Other than that, all programs, Internet, etc don't seem to care.
What do I know though?