Eric G. Wiley

I don't know what the name of this function is or why it even exists, but once in a blue moon I accidentally trip a mouse or key-combo that makes my cursor overwrite everything in front of it.

99.9% of the time everything works dandily: I insert the cursor somewhere in the middle of a sentence and start typing and it adds new characters as they are typed while pushing all existing text forward. As God intended.

However, right now my text editing software somehow thinks I want the cursor to behave like a bulldozer in the rain forest, where destroying everything in its path is considered progress.

The worst thing about it is that I don't know the proper name for what it's doing so I can't just quickly scan the toolbar or do a Help>Search to undo this mechanism.

Help>Search: "This is Bullshit" doesn't bring up anything helpful.

EDIT: Found it. The culprit is the "Insert" key.