I had a couple of employees tell me their Federal Withholding was wrong. I checked into it and the main one did not have enough wages to even require withholding which was accurate. However, I checked on another employee and she earned $897.00 for a bi-weekly payroll, claiming Single 2 (two). The PayWindow program deducted $44.93 for Federal Withholding. When I checked it against Pub 15 they show it should be $56. I checked my program and it appears I have the latest update. Any ideas?