In Excel 2003, I have a spreadsheet with multiple sheets (including a detailed page and summary page). Each sheet has about 20 subjects that contain YES / NO / N/A answer checkboxes. I need to be able to link corresponding summary and detailed checkbox's with each other. EXP: When you check the detailed checkbox for SUBJECT A...the summary checkbox for SUBJECT B will be checked. I also want this to work vise versa. Basically, I’m just trying to link a checkbox to another checkbox. I'm unfamiliar with macros. Could you walk me through, step by step the EASIEST way to do this. Thanks, Spencer