We also found twice that the same huge populated number in line 7 was exactly the same number in non related clients.   I am finding that after the "fix" that took one of my accountants all day to go through all of our clients that in a few the "fix" changed the withholding amounts, so double check this.  We also had a few clients that the 941 produced NO numbers except in the line 7 and omitted a month or two out of the 941 liability area.  Sadly, after the "fix" we've had one return to the same status.  I'm not finding this in the accounts that we do not produce in house payroll as of yet.  I sure hope programming corrects this before it causes additional issues!