poker tracker inaccuracy?

[wiggs73]

a few days ago, i cashed my pokerstars account down to a nice even number and started a new database in poker tracker. what i've noticed is that the profit showed in poker tracker is about 12 big bets higher than my actual profit. i've played about 1600 hands since the cashout / new database. is this a known issue, and if not, is anyone else noticing this?