When I started up Empires, Xfire came up with a message saying that it had detected my game crash, even though it was running fine. Clicking, caused focus to switch to Xfires error detection thing. When I closed it and switched back, I got a black screen, but I could hear fighting (a tank driving past, firing a few shots, and then someone dying). Then it crashed with this message: Microsoft Visual C++ Runtime Library Code: Runtime Error! Program: ...\source sdk base\hl2.exe R6025 - pure virtual function call OK And I did get a MDump