game version:
- Order of Battle: World War II, 9.0.0 GOG
- Blitzkrieg 9.0.0 (bought as trial, not interested in pacific theater)
what I did:
- installed the base game (if important: onto a drive which doesn't have system files at all)
- installed the DLC
- both processes were finished without problems
Problem 1:
When I select the Brlitzkrieg campaign on the main map, it shows up as a trial version, and I am advised to purchase it if I like the first scenario. It seems that even after installing, I miss a step to register it.
blitz by istvan galuska, on FlickrProblem 2:
popup windows have some weird problems. Text on the buttons, and also the text box itself is blank. (this is not a big issue, I think I can find a tutorial on youtube or something)
tips by istvan galuska, on Flickr


