Residue table appeared grey and cannot be edited

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12:22:05 AM PST - Thu, Jan 17th 2013
Dear all, What can I do if the residue table appear to be gray and cannot be edited? https://www.dropbox.com/s/jx8pi70j4nuw50k/Screenshot.png I tried to reinstall ECCE and checked all possible ways but out of luck. Cheers, Alvyn