That's odd. Is it a CD-RW that you had installed after you bought the comp? Because XP has all those funky security measures that default a lot of settings to the highest security possible. You may just have to tell XP to let the CD-RW have access to your hard drive? Other than that, all I know to recommend would be to completely pull the component and re-install it, plus reinstall any software needed, but someone else probably knows a less drastic solution.