Need help please. =/

[PutraenusAlivius]

Move the screen? I think you mean the application. Hmm, this is hard.

I have some solutions for you. Just some for some of your problems.

Spoiler below!

Q1 : As an added oddity, I can't close the
program WITHOUT crashing it or forcibly shutting it down with task
manager or something like it. Hitting the "x" in the corner does nothing.

A1: Click File > Exit

Q2 : a large portion of the application is off screen and I can't see that area.

A2: You have to resize the Level Editor through the cfg / any other programs.

A2 - A: Go to My Documents/HPL2/ and click the LevelEditor.cfg. You should find the resolution. Change it until you can see it.
A2 - B: Download this.

This is all that I can fix. Hopefully someone else will help you.