Symptoms: When running the game for the first time, you must create a profile to play. In some cases, this profile cannot be created, preventing you from playing.
Possible cause: installing patches before running the game.
Possible solution: Check the "Profiles" directory within the Dawn of War folder, if it has been renamed to something like "Profiles1" you will need to change it back to "Profiles". After doing this, the game should work normally.
If all else fails, you should try a clean reinstall of the game before creating a support thread.