Hi Jürgen, Digi HW can only be used by either ProTools OR Core Audio. Check your system audio prefs. Don't use Digi as Core in or out. Otherwise, just restart your engine and turn on your Interface before. Ingo --- In logic-tdm@yahoogroups.com, "jurgenfrenz" <jurgenfrenz@...> wrote: > > Hi there, > > I'm supposed to mix some work in a big studio with ProTools 6.2.3 - I have ProTools latest > CoreAudio manager 7.4 installed. Last night it was working fine. Withoput any changes that > I'm aware of this morning the Digi CoreAudio manager reports a status : Not Connected (HW > in use) error. > > Any ideas what causes this? Help is much appreciated.... > > > Best > Jurgen > ------------------------------------