Problem with CD/DVD devices

My system cannot work with any CD or DVD device properly. The device appears in the device manager, but there’s an exclamation mark on it and I cannot use it (it doesn’t appear in any file manager).
I tried to connect a LG HL-DT-ST DVDRAM GSA-4167B and some another one and both of them didn’t work. I can’t even use a virtual drive (mounted by Daemon Tools).
I’m quite desperate (otherwise I wouldn’t post here with my poor English, I hereby apologize to all native English speakers :slight_smile: )
Can you help me, please?

P.S.:I’m using Win XP Prof. SP2

remove the upper/lower filters from the registry , check this article http://support.microsoft.com/kb/314060

Thank you very much. It works now.