Guys, I have a favor to ask of you.
Everyone whose launch issue was fixed by removing goggalaxy.dll, killing the Galaxy process and/or uninstalling Galaxy, please send me a PM, telling me exactly what anti-virus and firewall software you are using, and if you're running any unusual security settings in these.
I will follow-up with additional questions, but first I need our Galaxy devs to tell me what to ask for. :)

It doesn't look like this issue is widespread, all things considered, and hopefully is only related to interference from extremely hardcore anti-virus/firewall software.
We'll do our best to resolve this, but first we need to recreate the issue.
I'm counting on your feedback. :)