Try the following on the affected workstation.
- Run the SedonaOffice Client Tools located in the start menu.
- Select the Auto Update File Location option and click Open.

- Adjust the Network Path to SedonaOffice Updates field with your UNC path to your shared directory on the server that holds your updates. This is typically \\YOURSERVERNAME\SedonaOffice Installation Files\

- Select Apply there after making the change, and then try opening the client again. It should initiate the SedonaOffice update if the Client machine has access to the shared directory you specified in the above step.