I have Windows 2000 and newly installed QT 6 - no sound at first but now sound works. In my install there are 6 dll files, all in the "Plugins" sub-folder, and none called qtimecmgr.dll or qtim.dllPeople with Quicktime 6 might check the QTInfo.exe file to make sure that QT has correctly identified their system and sound card, etc?