Pro Audio Support

Q:
When I playaback in ProTools 6.x, I get an error message, "MIDI Filter... -29299" and I can't resume playback.
 
A:
When this error was encountered in Mac OSX, trashing preferences helped.

1. Quit ProTools and all applications
2. Go to the Mac HD > Users > you username (the house icon) > Library > Preferences.
3. Inside this Preferences folder locate following items and drag them to the trash:

com.digidesign.protools.plist
DAE Prefs
Digisetup.OSX (and if present "Digisetup.OSX Corrupt")
ProTools LE 6.x Prefs

4. Empty the Trash and restart ProTools.