Verify the job has drive maps. Verify the Worker has auto_mount turned on. Make sure the drive isn't automounting as part of the profile: Go to "Start Menu->My Computer" on the machine in question. Pull down Tools->Map Network Drive There should be a checkbox for "Reconnect at logon." You'll want to unmap the drive, and make sure that option is unchecked whenever you map the drive on that machine.
One can also submit a "test" job to check on the drive maps used on the Worker:
- Launch the QubeGUI
- Select the menu item Submit->Commandline Job...
- Set the "Command" to "net use" (without the " " quotes)
- Submit the job
- Refresh the GUI and check the "Stdout" Panel for the results of the mapped drives