There was a tiny problem in the Dutch localization (which is why I 
didn't see the problem in my German/English test environment) that 
effectively broke the JavaScript that would have rendered the 
interface at that point. Instead, you were presented the placeholders.

I've just uploaded a new build that fixes that particular problem. 
Please just redownload from

http://www.iospirit.com/remotebuddy/download/

It should work just fine now for systems with Dutch locale, too.

Best regards, 
Felix Schwarz