Sage 100

Have a client just showed me her County Withheld amount for 2 employees is not equal to what you see if you go into Employee Maintenance/Tax Summary/Detail.  I thought the numbers on W2s came from there, because that's where you go to DFDM if you need to clean up things that Payroll Data Entry no longer allows you to fix (another gripe for another time).

So does anyone know of some other file that Aatrix would be using?  Everything in Sage reporting and displaying shows amount X for these employees, but Aatrix shows Y.