Hi Peter,
Before loading MapInfo Pro, Can you try going into your Windows, Devices and Printers, and set MapInfo Pro as your default printer.
Second, Start up MapInfo Pro , (don't load anything yet)
Click on Pro > Options > Startup > and uncheck Save and Restore Printer information. Click OK.
Then, Click on > Pro >Options > Printer and make sure MapInfo Pro is the default Windows Preferred.
Now, Load a Map into MapInfo Pro, and Click on New Layout > Add Map to Layout.
Does this work?
Sometimes you can experience lag, if you are working with files across a network as opposed to being local on the machine.
If you are still having trouble, as Dave A. Mentioned, please list version of MapInfo Pro. and Version of Windows. Thanks