Apple OS 10.9 Mavericks compatibility for X-Rite color solutions.
The recently released Apple OS 10.9 Mavericks may experience communication issues with X-Rite instruments. To resolve these issues, users need to update to the latest X-Rite Device Services (XRD v2.3.2) driver software.
To download: X-Rite Device Services (MAC only) version: 2.3.2 click here.
More info is available here.