Hi everyone, I have a small problem where the counter is not working how I would like it two work. sqlcounter monthlytraffic { counter-name = Monthly-Traffic check-name = Max-Monthly-Traffic reply-name = Session-Octets-Limit sqlmod-inst = sql key = User-Name reset = monthly query = "SELECT IFNULL((sum(acctinputoctets)+sum(acctoutputoctets)),0) FROM radacct WHERE username='%{%k}' AND Month(acctstoptime) =(Month(NOW())) AND Year(acctstoptime) = Year(NOW())" } The problem with this, is that it the SELECT statement returns a value Less than the value of Max-Monthly-Traffic, then sets Session-Octets-Limit is set to equal Max-Monthly-Traffic. What I need it to do is to populate Session-Octets-Limit with the VALUE of Max-Monthly-Traffic, then subtract the VALUE of the Select Statement. E.G. if Max-Monthy-Traffic is set to 250Mb or 262100000, and the SELECT returns a result of 52430000 being 50Mb of usage, then Session-Octets-Limit should be set to 262100000 - 5230000 being 256870000 Can anyone point in the right direction on this please. Thx Nev