Need new activation code for InDD CS3 running on WinXP

I've been using InDD CS3 on an old, but rock-steady Windows XP system for years.  Recently had to replace the power supply & motherboard.  No changes to system or harddrive at all.  All programs running just like they did before the minor hardware replacements but CS3 is telling me I've got 3 days left to reactivate the software and Adobe support says it cannot provide activation codes.  Anyone know of a way around this?  I do have my original software and license (and original activation keys too).