Just pushed a small update to the Mac Downloader 1.2 (397) which includes only bug fixes. As always if you encounter any problems, feel free to submit a "Crash log" from the app's "Settings".
@Szulak, tried it with deactivated firewall...won`t work either.
@FallenZen: Thank you for your option. I just send it to you through Email.
Otherwise I could also just have copied and posted it here =)
Your e-mail hasn't reached me, something is really wrong here :/
Please try again. Or use a pastebin.com service to upload a log, then paste link here.