Passwords Don't Match

Has anyone encountered this behavior... ( I am logged in as Admin ) I have tried to add a 401k employee deduction to 2 new employees. I go to their record, then payroll tab, then deduction tab, I select 401k Employee payroll item, change their percentage from the default to whatever they have chosen as a deduction but when I try to save the error "passwords don't match" pops up and I cannot save the change. I cannot see how editing the payroll deduction has anything to do w/ employee access?... Heeeelp!

-H

EDIT: I would still be interested to know why this is happening. But I have found a workaround. I went directly into Payroll Items, chose to edit item 401k Employee, clicked the check box by the employee name, then changed the default percentage, then saved. The deduction is now showing properly in their employee record... weird...