Scrolling down the system message
No way to drag the marker right of the System-Message text
After starting the steam version for the first time, I found out that I cannot klick on the marker on the right side of the System-Message text and hold the mouse button to drag it up and down. Instead I can only left click directly to the place where I want to scroll or click the up and down buttons. Not a big issue, but it kinda confused me in the first moment and probably confusion should rather not be the first impression after starting the game, so I suggest to work on that.