I-Expense has Future Expense Report Date - how do you fix so it will cut a check

I have a user whose expense report is not cutting a check and the AP team believes it is because the expense report shows an expense report date of 30-Mar-2012. 

1. What is the fix so we can get our employee paid?  Do you just update the invoice date on Invoice itself to be current so the check cuts?

2.  How did the date get set so far out?

The expense report is in "Ready for Payment" so user cannot withdraw the expense report.  And based on my comments I am not a guru in this area so your assistance, in simple terms,  on this matter would be GREAT!