When you create a payroll, what does it mean if the box at the bottom of the create payroll screen, ("Turn off personal time accrual") is checked?
If you have setup your personal time to accrue each payroll, and do not want to add to employee accruals, check the box "Turn off personal time accrual". in the Payroll Information screen when you create a payroll. A good example for when you might need this feature is running a bonus payroll.
To see if an employee is setup to accrue/earn time per payroll, go to Payroll>Employees> (find the employee), click on the personal tab and see if the box "Earn Per Payroll" is checked: