He runs WW1 1.05c on Win XP (dx diag and save attached to this post)
When he loads the save he is in August 1914 Military Phase, he moves a fleet and ends the turn.
Then two battles follow ( one Austria vs. Serbia, one Germany vs. Russia)
Then a new phase begins and the "military AI is working" message appears. Then, after a minute, a WinXP message box appears "Windows encountered a problem"
This problem did not appear with previous patches.
If you need any further information, please let me know.
