Yes, more details.. Read the 'Sticky' at the head for the main Sound Forge forum page. Do all file formats exhibit the same behavior? For instance, MP3 and PCM.
Welcome to the Magix Sound Forge users forum @Ralph-Wade.
"Any music file" does not state the format(s) . Do PCM <.wav> files playback without issue? MP3 files are a conman source of playback issues. Try enabling, 'Always proxy compressed formats.. if AS has that option ; (Options> Preferences> General)
Do you have a internal soundcard or external interface? Try a different audio device type, Sound Mapper or Classic Wave Driver are usually trouble free. I do not know exactly where that setting is in AS (Audio Studio), but in SF Pro it is in the "Options> Preferences> Audio" menu.
If everything fails, uninstalling and reinstalling SF can fix MP3 issues it in most cases