Slash and num lock problem

[Blurpy]

I never use the number keys to the right, so I have num lock off when I boot. But I use the slash key that is next to the num lock key, and I sometimes press the wrong key, so num lock is activated. I don't want that, so I turn it off again. But after that the slash key is disabled. It's only in the terminal I used, so I can close it and open a new one, and the slash key works again.
This is with Eterm.

In aterm I can't use the shift key without activating num lock no matter what. I can use shift+slash, but that's not a good solution.

It's not a big problem, but it's very annoying!
Has anyone else experienced this, or have a solution?