'cd e:\; svn update e:\' fails

Has anybody seen this before? On a Windows box with the root directory of a
drive being a Subversion working copy, when you are in the root directory and
specify the path to update, then it fails:

C:\Documents and Settings\Blair Zajac>svn update e:\
At revision 814.

C:\Documents and Settings\Blair Zajac>e:

E:\>svn update e:\
svn: Working copy 'E:' locked
svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)

Removing the e:\ from the last update has update work.

Regards,
Blair

-- 
Blair Zajac, Ph.D.
<blair@orcaware.com>
Subversion training, consulting and support
http://www.orcaware.com/svn/
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