Well, its complex if you have never used it before, or didn't even know it existed. On MS OfficeXP, there is a built-in mathematics equation writing program called 'Microsoft Equation 3.0' that allows you to write math equations neatly. Ever notice how even the most complex looking calculus questions are so neatly typed out in your textbook? Well, I want to be able to do the same in my reports/thesis. Problem: I can't find it on my Mac version of Office, and being the computer genius that I am, I can't seem to add it in. I tried going to Tools>Customize>Commands, and then adding the "Equation Editor" icon to the "Insert" menu. I thought this would allow me to insert equations whenever I wanted. However, it isn't clickable (the text is dimmed....unusable), and so I still can't write equations. Can anybody help? Regards. EDIT: Okay, nevermind. I need the Office ValuePack CD, right? That's the disk that came in the box. Unfortunately, my copy went missing when I moved back home after I finished school. I need it to do my M.Sc in a few months, but not now. Ah well, I guess MS can have more of my money when I buy it again. I really do need Microsoft Equation 3.0. Damn!!