Hello Matthew, > Please open a support case with Product Support Services for that failure. > http://msdn.microsoft.com/en-us/windows/hardware/gg487530.aspx What type of support do you mean? On this page, I see only a fee-based support offer from MS, other options are related to forums, MSDN, KB etc. Should I pay while reporting a non-understandable and suspicious issue? Regards, Eugene ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/