[Wlug] strange filenames

Hi All For some reason i sometimes find files with strange names like '??'. When i do a long listing the file name changes to some other bizare character combination. When i try to delete the file using 'rm', or cat it, i can't seem to pass the correct filename to rm (i do try to escape characters, and use 'TAB' but no luck). Is there a way to pass an inode number to rm or cat? thanks, --brad