you mention that you run rc4 without any options selected?
The thing is, dsdt creation with rc4 is buggy, so run 0.8.2 with dsdt only, then run rc4 with all basic options, including dsdt, because it does update it correctly, and offers better support.
There is also an option to show/hide Extra folder, but no need really, if you set your system up fine and have no major issues, and if don't care about extra OS tweaking, nevermind.
I'm attaching a script that comes in really handy if you keep it forgotten in "Documents" folder. Click "show" to show hidden files, click "hide" and run away, count to 10, shout "V", and your mini will come looking for you.