To run Reminders for pledge installments due in 30, 60, and 90 days, run pledge reminders for 30 days first by entering a date that is 30 days out in the Run date. (i.e., If the current date is 3/31/08 and you want to run reminders for pledge installments due in a month, enter 4/31/08 as the Run date.) Mark them as reminded when prompted so they will be not be included in the 60 and 90 day runs. Then repeat the process for 60 days out and lastly for 90 days out.