Some advice please for an Access novice. I have a report that calculates the total number of days that employees spend on sick leave grouped by quarter (based on first day off sick). I need total sick days per quarter but have trouble when an employee's sick leave spans more than one quarter - the entire period of sick leave gets thrown into the quarter when the sick leave started. How can I work it so that the sick leave is allocated into the appropriate quarters rather then just the one it started in? All advice appreciated.