Ruth:

It would seem like the workstation is no longer talking to the server. Assuming that the hardware hasn't failed;

Use Windows Explorer to browse to x:\softrak\system (where X = drive Adagio installed on). Try creating and editing a text file with Notepad.

Is this a problem for all workstations or just one? Try rebooting the workstation. If that fails then try rebooting the server.

Try accessing the Adagio sample data.