LinuxQuestions.org - TFTP server returns "Error Code 0: Permission Denied"

Hi, I'm running tftpd on Fedora Core 4 in order to upload Cisco IOS to some devices. I set up the /etc/xinetd.d/tftp file with disable=no and server_args=-c -s /tftpboot. The service is running, and I can access it locally (with the command 'tftp localhost') and remotely from Cisco IOS commands. However, when I try to issue a 'get' command on any files in the /tftpboot directory, I get the 'Error Code 0' message (Permission Denied).

I figured that this has something to do with file permissions, and after googling various forums, I've tried everything: chown'ing the folder and its files to various names, and chmod'ing the folder and its files to 777, 755, 666. But I still get the error code 0 regardless.

Are there any other parameters to tweak? I don't care about security; I just need a simple TFTP server set up to allow file transfer. Any ideas would be greatly appreciated!