I just purchased Constructor, but It won't run. It just shows a black screen with white text saying various loading commands, but then crashes to desktop.
What should I do?
Thanks!

have you tried changing the graphics output using the utility provided by GOG.com ?

Well, same thing happens with me. My graphic card driver is up to date, and I've already tried all of the options on the GOG utility, still no luck =/.

Yes i have the same issue as well

Well, I've finally solved this issue:
On Windows Explorer, go to your Constructor folder (probably C:\Program Files\GOG.com\Constructor), and look for a file called "dosbox.conf". Open it with Notepad, or any text editor.
This is the DOSBox configuration file. As far as I know, the issue with Constructor is due to some incompatibilities with graphic cards (mostly ATI ones).
Anyway, look for a line when it's written "frameskip=0", and change it to "frameskip=1" (without the quoted marks).
The game should play fine now :)

I am using OS X BootCamp for Won XP / SP3. No games from GOG are launching properly, all I can see is DOSBOX logo in a window which suddenly shuts down and only leaves a running process for dosbox but wont launch the game at all.