I had to do a semi-complicated work around to make mine work. I am on xp pro 64. It involved downloading a program, (orca), that enables you to change the programming a bit to make it work. I wish I could help you more but it's been awhile since I did it. Hopefully someone will see this post and be able to guide you through it. Or maybe do a search in the discussion groups on Orca and see what comes up. Good luck.
Phil