[boost] [svn sandbox]

When I try to SVN update the sandbox, I get the following error message: Update Can't create directory 'D:\boost-svn\boost-sandbox\statistics\support\boost\assign\v2\chain\aux': The directory name is invalid. It doesn't look so invalid. Is anyone else having any issues, or have any suggestions? I've tried "clean up", no help. I'm not an expert in SVN. Windows 7; TortoiseSVN 1.6.10, Build 19898 - 64 Bit (latest version AFAIK). Should I just recheckout the repo? (I'm sending a mailing list message first as checking out the repo takes a lot of bandwidth and time.) Thanks in advance, - Jeff