The print dialog box for InDesign is pretty complex, and there might be a lot of default settings which have changed between CS2 and CS5. You might just have to dig around to find the differences between the two, if there are any.
What is your print setup like? Are you just printing to an RGB inkjet printer? If it's something simple like that you could try exporting to a PDF and printing in a different application.
If you haven't already, it might be worth trying to post your question on an InDesign-specific forum.