game-editor.com

when i did y = y- 5; (i pasted the = because my = key is not working in GED) when i put in the 2nd space on it seemed to of deleted my 1st y. when i backspaced, it showed random letters. isint that werid?

Yes that has happened to me before! It is odd... you type in something, then the next thing you know, every letter you type is not written, and the characters of your script are just deleted one at a time from the beginning, every time you press a button.

Whenever that happens click on the empty space below it and press "backspace".

Perhaps it's not a glitch. Have you checked that your insert isn't activated?