I got a freeze in the geoscape.
Recent mission, completed a terror site (with some bad ass aliens that were tough).
I had a few units in the infirmary about to get well
I was researching 3 things about to be completed (all had excellent)
Stun Wepons
Toxin Grenade
Alien Plasma technology
The sound kept playing. After a minute or so I tabbed. The sound kept playing.
Game was marked as "Not responding" on my machine.
Computer info:
Thinkpad T530
intel core i7
12 GB ram (hell yea!)
64 bit win 7
built in graphics
I'll try and reproduce now