TransferTimeOutErr. This error means that a DSP chip did not respond to a data transfer command issued by DAE.- Corrupted Session (Track Transfer to a new one).- Digi hardware set to digital sync without a valid clock.- Corrupted DigiSetup File. Delete it from the System Folder and Restart.- Corrupted Preference file. Delete Pro Tools preferences from System Folder.- Audio Interface not connected or powered on.- SCSI Manager 4.3 installed (PT 3.0 and earlier).- PT1 systems with more than 1 audio card - verify all Audio Cards have the R03 chip in the U45 location.- 442 Audio Card failure (try 1 card at a time).