Grounfcontrol doesn't login

[Salih EMIN]

After installing Groundcontrol, I opened the "Project" folder, pressed the "identify Yourself" button, pressed "Login in to Launchpad", inserted my login information and then after succesfull login in to launchpad, groundcontrol returns to the "Login... and Register" window.
I also run groundcontrol from terminal to see if there is a usefull output (I have attached it)

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: groundcontrol 1.6.6-1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Thu Jun 23 23:52:03 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=el:en_US:en
 LANG=en_US.UTF-8
 LC_MESSAGES=el_GR.UTF-8
 SHELL=/bin/bash
SourcePackage: groundcontrol
UpgradeStatus: No upgrade log present (probably fresh install)