[Milhouse]

I'm interested in trying out your latest build. Do I have to modify advancedsettings.xml and/or config.txt?

Unless you are using MySQL, or have tweaked your fanart/imageres settings, there is very little reason to have an advancedsettings.xml at all. I can't tell you if you need to modify your as.xml without knowing what is in it, but if it's full of default/junk settings you probably should remove them as they can cause problems. You only need an as.xml if you have a need to modify default settings, which generally means your as.xml should only contain a handful of settings. Don't add anything to your as.xml file unless you know what it does.

Same applies to your config.txt, I don't know what you've added. Paste up both files if you're still not sure.