Welcome to the group Stevie..
The Sleepyhead issue must have something to do with us who are named 'Steve'
I had/have the same problem at times.
To overcome it I found that altering the internal data box sizes within the window would allow the page to be scrolled up/down again.
Another problem that can happen in Sleepyhead is if you go to a maximized window you may find you don't have the Close, Restore Down and Minimize buttons showing in the top right corner of the window.
To close the Sleepyhead program you can use the key combination of Alt F4.
Ctrl Alt Del is another option for closing the program, in Windows 10 you will be given a choice of what you want to do with the program/s..
With older versions of Windows the Ctrl Alt Del will fully shut down and restart the computer, it was referred to as a "warm boot" for us older computer users.
Let us know how you go with it all.
Ock. [aka Stephen or Steve