Ok folks... here we go again. Bad enough.. upgrading from any previous versions wipe out settings MS says will stay safe.. explorer, file folders.. etc, but driver issues are a pain in the butt. With 1803, the last version of Creative's drivers released Jan 2017, had no issues with any sound options or settings. However, with 1809, I can no longer use 5.1 surround. The Headphone's settings work, 2.0/2.1 works just fine. If I choose 5.1, only the left/right speakers work... all the others are cut off completely. Usual troubleshooting have been done... Not sure if Creative will release an update, highly doubtful.. so, just giving a head's up if anyone else runs into this issue, and finds a solution or work around.