I have a physical CD of Duke Nukem 3d: Atomic Edition 1.5.

I installed it in dosbox via a bin/cue file that I made with Imgburn.

The problem is that after I use setup.exe to setup the game, when I try to exit Duke Nukem Atomic, the game hangs at the exit screen that says "Thanks for playing" and goes no further:

I'm using Dosbox .74.

Does this mean the CD is bad or is this a glitch in Dosbox's CD emulation of this game? Or something else?

Dosbox .74
Windows 7, 64-bit.