Text overwrites existing text in Eudora

HI,

I have a problem that occurs from time to time with Eudora. I even think I solved it once, but, like an idiot, can’t remember how!

When I try to insert text in the middle of a sentence in an email message, I can’t do it because what I’mtyping overwrites existing text. e.g., I’ve typed “brown fox jumps over the lazy dog” in the body of the message, and I want to insert “the quick” before “brown,” what happens is that “the quick” types OK, but it replaces the word “brown,” the space after it, and the word “fox.”

Put simply, I can’t add text in the middle of a message without having it replace existing text. AND I can’t figure out how to turn off whatever this “feature” is!

Any help greatly, greatly appreciated,

Win