I reported to Galleon that SPC() doesn't work. Everything else checked out OK.
There is no longer any "true" full screen possible, as monitors are all different sizes, stretched, etc. QB64 changes screen resolution when Alt + Enter is used and takes up the usable portion of the screen for that resolution. It is a pseudo full screen, but very similar to a QB full screen console.
The IDE is by no means finished, but the compiler is getting close. Frankly, I wish Galleon had completely finished the compiler before starting the IDE project. I have first hand knowledge how much extra work such a project is. In fact, it is a lot like doubling the compiler project.
On one of my computers, I get an out of range error on my monitor. If that is happening to yours, just press Alt + Enter a second time after that message is displayed. Even if there is no message, you might want to give that a try.
As far as the paths are concerned, QB64 requires the run time files and the data folder included in whatever folder you choose to keep your QB64 exe programs in.
Galleon should have some other helpful information about pathways if he responds to this post.
Just a side note to what QB64 can handle, last week I compiled 20 modules together into one 26,000 line 800 KB QB64 source program, compiled it, and it runs as a single exe!