Erase in Word

by Judy Brodsky - 6/28/10 2:18 PM

There's something I hit by accident on the keyboard that erases a lot of what I've typed in Word. I don't know if it's everything since the save or some other amount, but it's very annoying and I want it to stop. Does anyone know what it is? I have Snow Leopard running and Word for Mac 2008.