I have an HP Desktop, (running Home XP SP2 with all updates current, and AVG anti virus with all updates current) with a CD/DVD Writer Combo. DVD Drive is a "LITE-ON DVDRW SOHW - 16335" The problem is that it will not play a DVD. When I check the DVD Region tab in the properties of the DVD Drive it shows that no region is selected. When I try to change the current region I get this error message: 'DVD Region Change Error - Unable to update region settings. Please make sure the drive contains a region 1 media and you have administration privilege' I am trying to change to region 1, I do have a region 1 DVD in the drive and I do have administration rights. I have tried to make the change in Safe Mode and I get the same error message. Thanks for your help in advance.