VertexManager crash on newer builds

[vsny]

Development build 3.5-491 works fine, but I've tried -603 and -604. Both crash with "DX11::VertexManager::CreateDeviceObjectsFailed in Src\VertexManager.cpp at Line 70: Failed to create vertex buffer".

Any ideas? Google didn't bring up anything.

I have an Ivy Bridge HD4000, Windows 7 x64 with the x64 builds.