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1. Window > Preferences > Validation
   
   1. turn off XML Schema Validator
   2. turn off DTD Validator and HTML Validator
   3. click the ... settings box to the right of XML Validator. 
      1. Select Include Group
      2. Click Add Rule
      3. Select File Extension
      4. Click Next
      5. Add extensions tdml
      6. Click Finish
      7. Repeat steps i-vi, replacing tdml with dfdl.xsd
2. Window > Preferences > General > Content Types
   1. Select Text > XML
   2. Click Add...
   3. Set Content type to *.dfdl.xsd
   4. Repeat steps b-c with content type set to *.tdml
3. Window > Preferences > XML > XML Files > Editor
   
   1. Uncheck Format comments
4. Turn off HTML validation.
5. (optional) Suspend all validators - you may prefer this. Otherwise some errors will always show up in the Daffodil tree due to (DAFFODIL-1638)

Graphics Problems on Linux/Fedora

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