Mystery Drive!?

>-----Original Message-----
>All of a sudden and for no apparent reason, I have
>a 'mystery' CDROM/DVD drive on my computer. Physically,
I
>have a CD burner (Drive F) and a DVD-ROM drive (Drive G)
>installed. However, Win XP now recognizes another DVD-
ROM
>drive (Drive I) that doesn't exist on my system. I tried
>uinstalling Drive I in Device Manager, but upon reboot it
>returns. Again, I have no physical Drive I. This
>happened right out of the blue!
>
>This isn't hurting my system, but I'd like to know why
>this happened and how to delete the drive. I tried
>deleting a hardware key in the Registry, but that, too,
>returned upon rebooting.
>
>Any help would be greatly appreciated. Thank you.
>.
>this happened to me awhile ago and it was after
installing a program but i dont remember what.did you
install something that might have created a virtual drive
without prompting you first?