Hi there,
I have a problem where when I try to launch MOO2 it will get to the dosbox start up screen and then go to a white screen. I hear the sound and the music going but get no picture. This question might have been asked/answered already but I wanted to double check. Any help would be appreciated.
I am currently running on windows xp sp.3
edit: Well I can get it to work without dosbox with just the orion2.exe but the sound is kinda iffy... wondering how to run it with dosbox still though.

Not sure why but two things to consider.
1. Uninstall and reinstall the game(s).
2. Contact GOG Support Here.
Hope you get it working properly soon.

What graphics card are you using?

I have a similar problem. It only happens in full screen mode.
Hit Alt and Enter to put the game into windowed mode and it should be able to work fine. In order to not need to do this every single time you play MoO2 go into the MoO2 folder inside the GoG.com folder and find the dosboxMOO2.conf file.
Open it with Wordpad or Notepad.
Find FullScreen=True change it to FullScreen=False.
And you can optionally changed windowed resolution to a higher res. I changed it to 1024x768.
It should work.
If it doesnt then your suffering a different problem from me and I dont know how to help further alas. Sorry.

Try a different graphic mode?