Have checked the LG DVD drive for compatibility?
For all your software and hardware check the
Windows 7 Compatibility site: (There you will find out about hardware and software compatibilty.)http://www.microsoft.com/windows/compatibility/en-us/default.aspx
There is a pulldown from which you can choose "hardware" and "software".
Microsoft does have an official Windows 7 Support Forum specifically for IT Pros located here http://tinyurl.com/7jq7ps
. It is supported by product specialists as well as engineers and support teams. You may want to also check the threads available there for additional assistance and feedback.
Microsoft Windows Client Team