Not if its already accounted for.
This is it entirely. MS have fudged the figures so it appears on last years balance sheet (conveniently with Vista and a new edition of Office). To the rest of the world, this just looks like substandard return for a single quarter because the product (Vista and Office - the true MS money-machine) did not launch successfully. It is only if you delve into the figures that you would ever uncover this balance discrepancy. Had the billed it in '08 - after all the OEM's had paid out for their pre-launch licenses - the figure may have appeared worse (Vista/Office aren't selling, compound that with a $1B 360 'error'). As it stands, cashing in last year has avoided all this press; it's out the way before E3 too; no one cares.