Can't see coordinates in Excel Formulas

Question

I'm using Microsoft Office 2004 for Mac. My Excel program is giving me problems in the formula bar. When I type a formula, instead of seeing the coordinates clearly, i.e.: A1+B2+C4, instead I see R[-1]C+R[2]C[1]+R[3]C[2]. I've tried updating Excel and that didn't fix it. Does anyone have any suggestions?