Final Cut Pro 3: Subframe Audio Scrubbing Does Not Work With RTMac Card

Subframe audio scrubbing does not work with Final Cut Pro 3 when a Matrox RTMac card and drivers are installed.
Symptom

When subframe audio scrubbing (FCP 3 User's Manual Volume 2 page 428), no audio is heard.

Solution

Do one of the following:
Published Date: Feb 18, 2012