Hi, the rule for calculating fines is specified by the user according to: Each box needs to be filled in with fine,time to start charging, charging cycle eg 1,7,7 = 1USD,EUR,etc fine, after 7 days, every 7 days What exactly does this mean? Does this mean 1. A late book is charged $1 after 7 days, i.e., a. the late charge starts at $1 b. a late book won't be charged immediately c. a late book will only be charged after being late for 7 days 2. After charging the $1, the borrower is charged another $1 after another 7 days, i.e., a. additional charges are $1 each b. this additional $1 won't be charged immediately on the next day after the first $1 is charged c. the additional $1 will only be charged after being late for yet another 7 days? Thanks for any clarification. Best regards, -- Ambrose LI Cheuk-Wing <a.c.li@ieee.org> http://ada.dhs.org/~acli/