Unresponsive to service requests. - i ordered a product upgrade for Registry Booster. Downloaded it... noted that my credit card was charged for the product. Then learned that it will not work on my current operating system. Win2000. Just XP/Vista. I have e mailed the Uniblue service 3 times now requesting help. Each time, i get an automatically generated response with a ref # and a promise that the rep will be in contact with an answer within 24 hrs. That has never happened. They're keeping the money but ignoring my request for assistance. I would be happy if they would just extend the license for the original product which works well on Win2000. They don't want to be bothered.