miDock Power Cord Problem

broadbeard
broadbeard Posts: 1
edited December 2008 in Troubleshooting
I purchased a new miDock10 for my daughter for Christmas. There is a very noticeable audible feedback (humming noise) at no (or low) volume conditions. I switched power cords with my miDock Studio, and the problem went away. So I believe there is a problem with the power cord / transformer on the miDock10. Where can I get a new power cord?