When i quit the Juce-Demo or the Standalone Player while playing a sound, the last filled buffer will be played as a constant noise.
I’ve never heard of that before, but it sounds like a bug in the driver - especially if it carries on making a noise after the app has quit! I’m pretty sure the asio wrapper shuts everything down like it’s supposed to.
yes you are right, its a driver issue, confirmed it with the asio sdk host sample,
update my drivers, anything fine 
The other thing, the control panel i can open in the asio sdk host sample (which is a command line application), but cubase has also problems too, so i think this is a driver issue too
Sounds like you’ve got a bit of a flakey soundcard there!
normally rme is known for very stable drivers… but its only a minor issue, you can easy open the control panel via the task bar, the other thing is fixed