Turning off keyboard shortcuts in IE

Is there any known way to turn off certain keyboard shortcuts in IE? Specifically the backspace to navigate back in your browser? I ask because the only known time it ever activates is when I’m entering data into a webform and I absentmindedly backspace (to, you know, erase entered text) and it navigates away from the form, destroying everything I’ve entered, and I’m about ready to punch my computer in the nuts.