svn error: Checksum mismatch while reading representation. what to do?

Hello all,

svn has been working nicely until today. With an svn update I now see:

banshee:~/RogueSVNWorkingCopy/docs/User sean$ svn update
svn: Checksum mismatch while reading representation:
   expected: d7670ada263fbe7fd1bbb0332e7e9d57
     actual: 98d7ddb400ce4b3cdcf0fa2e7b7280f1

What does this mean? Is my repository hosed? Say it ain't so! If so,
how can I find and remove the busted portions?

Thanks for any help!

-- 
____________________________________________________________
Sean McBride, B. Eng                 sean@rogue-research.com
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada
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