Map file deleted?

[Nox Penumbra]

Hello, I'm new here sad that my 1st post here is because of this.

Anyway since I'm completely new to making these things (I've seen many good stories from people, and wanted to try my own) I made a little test room, to get the hang of some of the things I can change and make.

I work on it all last night and had saved, closed, re-opened the program and map. After getting most of the structure and static objects in how I felt happy with them, I opened it up in the mapview (level editor still open to change things) noticed it was too dark(0 light at all) in some places.

I went back into the level editor and enlarge the boxlight so it contains the whole area, saved the now modified version and hit reload key in the map view (I went through the process of changing, saving, and reloading around 2-3 times). Feeling good about how the area looked by now, I saved yet again and closed the level editor, but the map view doesn't have a file->close button and the X button didn't seem to work so I just closed it from the task manager.

Now when I look for the map file in the level editor is does not show, I look in the redist folder(and all the subfolders) and don't see it, I type in the file name to try and open it that way and it tells me that the file does not exist; but when I use the map view program, its right there, where its always been.

Why can I see the file in map view, when level editor and my computer both say that it isn't there?