Which keyboard layout are you using?

Is it the same for all applications (Apple supplies a menu item, 
which switches back and forth between keyboard layouts depending on 
app - which I personally found very confusing until I found the 
option to turn this off)?

Since Remote Buddy replays the keycodes, not the characters, the 
keyboard layout shouldn't matter at all as long as the same key and 
modifiers are in use as in the keyboard layout you are regularly using.

Sidenote: being based in Germany, I don't have access to a SlingBox 
and thus can't test and debug the SlingPlayer Behaviour myself.

Best regards, 
Felix