Vanishing windows

[Dominosdad]

I'm sure there is already an answer for this posted somewhere, if I could only frame the search question right.*

When I get too close to the right of my screen the current window vanishes off to the left. I have to move the cursor to the left and click to make it reappear.
As I mentioned, I'm sure that there is an answer already, if I could find it, so I don't mind being offered a link to the solution.

*I'm probably not using the right terms.

[xenopeek]

Linux supports the concept of workspaces, which is what you are encountering. If you have so configured your desktop environment, moving your mouse to the edge of a screen can move you to the next (right) or previous (left) workspace. Applications you open on one workspace are not visible (by default, but this is configurable) on other workspaces. But they keep running. So for example you can open your music player on one workspace and start playing some music, then move back to another workspace and continue working on something else why music plays but your screen isn't cluttered with also having the music player window there.

You can of course configure this behavior. Depends on what desktop environment you have how.

[Dominosdad]

Thank you,
I now have a screen that doesn't vanish each time I move my mouse a bit too far to the right.
What a relief.
I can actually do stuff.