ncftp doesn't interpret -u -p options

Binary package hint: ncftp

With the standard unix ftp I can login into my ftp-server, but with ncftp I can't.
My command:
$ ncftp server.com -u user -p password

debug output:
ncftp> open server.com -u user -p pass
> open server.com -u user -p pass

LibNcFTP 3.2.3 (September 4, 2008) compiled for linux-x86_64-glibc2.9
Uname: Linux|lapsdy|2.6.32-24-generic|#41-Ubuntu SMP Thu Aug 19 01:38:40 UTC 2010|x86_64
Contents of /etc/debian_version:
  squeeze/sid
Contents of /etc/issue:
  Ubuntu 10.04.1 LTS \n \l
Glibc: 2.11.1 (stable)
Remote server is running ProFTPD.

ProFTPD 1.3.0 Server (server.com FTP Server) [ip]
220: ProFTPD 1.3.0 Server (server.com FTP Server) [ip]
Connected to ip.
Cmd: USER anonymous
331: Password required for anonymous.
Cmd: PASS NcFTP@
530: Login incorrect.
Login incorrect.
Cmd: QUIT
221: Goodbye.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: ncftp 2:3.2.2-1
ProcVersionSignature: Ubuntu 2.6.32-24.41-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Wed Sep 8 11:20:16 2010
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: ncftp