First post, by ManniiD
Rank
Newbie
Please start by trying a recent SVN/GIT build. 0.74 is fairly old as these things go.
All hail the Great Capacitor Brand Finder
The msg in the white box in the top right corner of the screen is a msg shown to you from the windy operating system. It reads "DOSBox DOS emulator is no longer working..."
As gdjacobs suggested, try one of the current SVN builds available here:
Klimawandel.