rsync - Sep 2006 - Some Files are Missing

Hello All,
        I'm kishore, new to this group. I'm using rsync to backup the  
Directory from local system to remote system. I'm using the command:
    rsync -rlt PATH(path of the filename to be backed up)  
IPAddress:/Path (where the file has to be backedup).

    I'm able to backup the directory, but some files are found  
missing.Please help me in solving this.thanks in advance.
With regards,
Kishore