L2.bin has stopped working

Problem signature:

Problem Event Name: APPCRASH

Application Name: L2.bin

Application Version: 0.0.0.0

Application Timestamp: 548fbe81

Fault Module Name: NWindow.DLL

Fault Module Version: 0.0.0.0

Fault Module Timestamp: 548fbf16

Exception Code: c0000005

Exception Offset: 00754d62

OS Version: 6.1.7601.2.1.0.768.3

Locale ID: 1033

Additional Information 1: 0a9e

Additional Information 2: 0a9e372d3b4ad19135b953a78882e789

Additional Information 3: 0a9e

Additional Information 4: 0a9e372d3b4ad19135b953a78882e789