I am using Equation Editor in Word and am writing a large equation using
integrals. The problem is that the integral sign does not scale up when the
equation becomes larger (ie: has a divide sign). I can make the integral sign
taller by making its font bigger but the sign gets fatter (not something that
is wanted).

Does anyone know how to make integral signs taller not fatter?

Please help before my thesis writing makes me insane!