Last Update for tonight. I understand it is monumentally difficult to support all of the varieties of hardware that exist and because of that, I make myself available to test or provide information for my specific operating environment. For the most part, I expect that the OS packages that I install ask for customary user input like names, passwords, and the like. I do not expect to have to supply or know details about my specific hardware other than gross features like memory allocations, number of processors and similar things. I have identified an Audio Problem that effects specific Ubuntu Distributions currently under development and also identified related distributions in the same Ubuntu Family that does not have this problem with the same VirtualBox running on the same hardware platform. Besides the Ubuntu distributions, I also run various other Linux distributions, OpenSUSE, Linux Mint, Fedora, Oracle Linux, Windows 10 Technical Preview. I have not experienced anything like this on any of the other Guest OSes that I just listed If you have additional information requests, I will be happy to try and supply whatever you ask. If you have possible workarounds or code solutions, I will happy to try them . If we need to get VirtualBox involved in debugging the problem, I will be happy to work with their representatives. Otherwise, I will track this issue and hope that some day it gets resolved. On Fri, Aug 21, 2015 at 3:46 AM, Raymond