Jamie Cameron - 2007-05-22

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Could you try doing the following to have Webmin output a more detailed error message :

1) Go to the Webmin Configuration module and click on 'Advanced Options'
2) Change 'Show stack trace for error messages?' to 'Yes'
3) Click 'Save'
4) Go back and try adding the printer again, and post the full error message that appears to this bug report