Hi Neil,

I figured out the case - yesterday you sent me HKCU.plist file from AutoCAD LT 2014, but not from AC LT 2015.
And I thought that it was from 2015 version!!!
That is why it doesn't work.

So if you need black background in 2015 version - please send me correct HKCU.plist file (from AC LT 2015)

Maxim