How to avoid autodeleting typing?

[Fredledingue]

I'm typing in the middle of a text, everything is normal, the old text is pushed forward. Then suddenly, I think because I hit a special key on the keyboard, the old text is not pushed anymore but erased as I type. new letters replacing old ones.

I never found which key to press to reverse that.

It happens everywhere it seems. can be on this message board box for example or in notepad etc.

Please help!

[eidenk]

It's the "Insert" key. It toggles that behaviour on or off. Above the "Delete" key on my keyboard.

[Fredledingue]

Thanks!

Is there a way to disable that?

[LLXX]

Not without some extensive modification. It's an inherent characteristic of edit controls.