I rebooted my laptop, did a diagnose and repair, did a virus scan, and all came up negative. It's only one day a week when I have to use wireless*, but I'm just wondering if it is possible a wireless connection provider (Penn State University) can block specific gaming on their network, even if it is someone's personal laptop.
Most do, I know both colleges I have been(Pensacola Christian & Uni of South AL) to had all common gaming ports closed, and some websites would not load either. While you would be able to access it from your dorm room, you wouldnt be able to at the lounge or study areas. I assume this is the issue.
As for your registry entries, try Ccleaner.
http://www.ccleaner.comIt has a registry scan feature.