Are you using version 3.4? For 3.4, you can now set the font size, which might help, particularly when your PC has the text size increased (in Windows settings, to compensate for a high DPI display). If you're using version 2, an increased Windows font size will really not work well with the TD application.
When I redesigned the UI to deal with a configurable font size, all dialogs were updated to make them behave better with different text sizes, including expanding the size of the dialog to encompass the contents, shrinking the dialog to stay within your screen's size, as well as adding scrollbars for content that exceeds the dialog size. Most work just fine, but I have seen one or two that have some odd side effects with different font sizes.
There's not a dialog called "Layout Properties", so I'm not 100% certain to which dialog you're referring. It's probably the Screen Properties dialog, but might be the Layout Tab Preferences dialog. Either way, both of those definitely have vertical scroll bars to handle content overflow. Can you post a screenshot of the dialog you're referring to?