I never used Mumble, I just install it for test.
From the first try Mumble crash at start up.
Problem detail show an APPCRASH in nvwgf2um.dll
Problem Event Name: APPCRASH
Application Name: mumble.exe
Application Version: 188.8.131.52
Application Timestamp: 51aa6593
Fault Module Name: nvwgf2um.dll
Fault Module Version: 184.108.40.20693
Fault Module Timestamp: 5290d6e1
Exception Code: c0000005
Exception Offset: 0012a67d
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1036
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
I'm using windows 7 64bits and a Nvidia GTX460M.
I tried an old stable Nvidia driver and I'm currently using the beta one R331.93 beta.
I updated DirectX and use the last version and still get the same issue.
Any idea or help to make Mumble working would be appreciate please!