This excerpt taken from the EYE 8-K filed Jul 3, 2007.
PAYMENT SCHEDULE AND INVOICES
IBM shall invoice AMO during each month of the Term for the monthly pro rata portion of the Annual Services Charges for the Designated Services to be performed in accordance with this Agreement during that month, and any other Charges incurred during the month as set forth in the Agreement (for example, one-time charges associated with Transition) . Other Charges associated with the Covered Services will be invoiced in the period after AMO incurs such Charges, or as otherwise set forth in the Agreement.
19.02 Payment of Invoices.
19.03 Disputed Charges/Credits