I have a Sony Dru500a burner installed and was using Nero fine. I installed DVDXCopy, and now my DVD or DVD burner do not show in any program. They dont't even appear in My Computer. In Device Managerthey have yellow ! next to each drive and they have the following message: Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged.(Code 19) I uninstalled both programs and they still do notappear in My computer. What should I do?