This excerpt taken from the ICI 6-K filed Mar 21, 2007.
Income Taxes. As a result of this review, certain current taxation assets were offset with current taxation liabilities and certain deferred taxation liabilities were offset with deferred taxation assets. Prior year presentation of these amounts has been changed to conform to the revised presentation. Deferred taxation assets at 31 December 2005 originally stated at £507m have been revised to £254m and deferred taxation liabilities originally stated at £274m have been revised to £21m. Current taxation assets 31 December 2005 originally stated at £81m (£42m non-current and £39m current) have been revised to £18m (£15m current and £3m non-current) and current taxation liabilities stated at £423m have been revised to £360m.
During the year, the Group also reviewed the basis of presentation of current asset investments within the cash flow statement. As a result of this review, current asset investments are now presented as part of investing activities as opposed to their previous classification within financing activities. Their inclusion within the definition of net debt is unchanged. Prior year presentation of these amounts has been changed to conform to the revised presentation.