View log of deleted files

I had on CVS a directory that contained some files. I deleted all the files
from the CVS. When I try to view the log of the files deleted it gives me
 cannot find C:\path\filename.txt : No such file or directory

I'm using this command
cvs -d :ext:name@server:/srv/cvs/location/name log -d "2009-08-15" -r1
"C:\path\filename.txt "

What can I do so that the log command will return the informations I need.