Crazy with non root asterisk daemon problem at call manager!

Hi

if we run asterisk (1.4.22 or 1.4.17 compiled from tarball on a debian etch machine) as non root all seems to be ok, but telneting to manager and performing a command we have problems.

Please see:

Trying 127.0.0.1…
Connected to localhost.
Escape character is ‘^]’.
Asterisk Call Manager/1.0
ACTION: LOGIN
USERNAME: admin
SECRET: XXX

Response: Success
Message: Authentication accepted

ACTION: COMMAND
COMMAND: core show version

Response: Follows
Privilege: Command
–END COMMAND–

As you can see, output command are not in response.
But same compilation, running as root do the follows:

root@kiyosaki:/etc# telnet localhost 5038
Trying 127.0.0.1…
Connected to localhost.
Escape character is ‘^]’.
Asterisk Call Manager/1.0
ACTION: LOGIN
USERNAME: admin
SECRET: amp111

Response: Success
Message: Authentication accepted

ACTION: COMMAND
COMMAND: core show version

Response: Follows
Privilege: Command
Asterisk 1.4.17 built by root @ kiyosaki on a i686 running Linux on 2008-11-26 20:16:09 UTC
–END COMMAND–

Os:
root@kiyosaki:/etc# uname -a
Linux kiyosaki 2.6.24-19-server #1 SMP Wed Jun 18 15:18:00 UTC 2008 i686 GNU/Linux

Any Ideas???

Thanks a lot