The linker screens, open through the Windows Temp Directory. It is very possbile that the Windows Temp is full. Start by simply closing Farm Works Office and any other running programs. Shut your entire computer down, (not a restart). This will remove severl open items from the Windows Temp Directory automatically. However, you may also need to clean this same Directory. There is no danger is deleting files and folders from the Windows Temp Directory, if computer is using, it will not allow you to delete. Here are the steps to follow.
1. Click on the Windows Start button, 2. XP or lower, click on Run. Vista or higher, select Programs-Accessories-Run. 3. When the Run dialog box appears, type this into the Open box: %temp% and click OK. 4. When the Temp Direcotory opens, you can select a group of files by highlight first file, hold down on the Shift key and left click on bottom file on screen. All files between will be selected.Click the Delete key on keyboard. 5. Repeat process until all files (that can be) are removed.
Re-open Farm Works and test the Read Job Data process again. Let me know if probelm persists.