Cash Balance errors

Q09H&B, started to notice a cash balance difference between what Q was saying and what my brokers Web site/monthly statements were saying. I suspect it is the way my brokers website downloads my transactions?. When I receive a dividend and entry is made into a line giving the date, the action as "ReinDiv" and the security name. No $ amount # shares etc. The following line entry action is "bought" will all the # shares, price etc and a subtraction from the cash balance. i.e. Cash bal = $100. Div = $25, buy=$25 cash bal should remain @ $100 but cash bal=$75.00. What is the best way to "fix" this or is it a download/entry problem.