tag aborted - cannot rename file

[Mike House]

I'm having sudden trouble applying a tag to a group of files, using 1.11.1p1 on
windows 98 in :local: mode. It looks like I've got some temp file I shouldn't, 
but I can't find it to remove it.
 
my $CVSROOT :local:c:/files/cvsroot
command line: cvs -t tag -c r4-0-8

->
rename(c:/files/cvsroot/sys5/swim/man/,HELP_12.DOC,,c:/files/cvsroot/sys5/swi
m/man/HELP_12.DOC,v)
->
rename(c:/files/cvsroot/sys5/swim/man/,HELP_13.DOC,,c:/files/cvsroot/sys5/swi
m/man/HELP_13.DOC,v)
->
rename(c:/files/cvsroot/sys5/swim/man/,HELP_14.DOC,,c:/files/cvsroot/sys5/swi
m/man/HELP_14.DOC,v)
cvs.exe [tag aborted]: cannot rename file
c:/files/cvsroot/sys5/swim/man/,HELP_1
4.DOC, to c:/files/cvsroot/sys5/swim/man/HELP_14.DOC,v: File exists
-> unlink(c:/files/cvsroot/sys5/swim/man/,HELP_14.DOC,)

Ideas what I can look for?
TIA, 
Mike

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