Calvinus, I emailed you about this after testing the new music player (works great!) but thought I'd post here too.
Playing my standard way: strict turn based/army by army/2 player/CP.
As soon as the first military phase starts, the game freezes/crashes under 1.05L. I have had this crash with music, and without music and sound. It's invariable.
My offensive options are Shlieffen and Koenig, and Italy has alway joined the CP in August. The game crashes as soon as Serbia takes its first activation (the first thing to happen in the Military Phase, according to the messages).
Hope you can isolate this.