I just tried the latest GPA (4.0.144237) and was surprised to see that the vertex/pixel shader constants are not available from the State tab. Am I just blind? I had to revert back to PIX for Windows to debug that kind of problem.
This is a DX9 app, I don't know if it works with DX10 constant buffers.
In case it's relevant, here is the Monitor's About box info...
Windows 7, 64-bit DEP enabled Num Processors: 8 Memory: 12271MB System BIOS: Hewlett-Packard 786G3 v01.17 (08/19/2009) Video BIOS: Version 62.00.4C.00.08 (03/12/09) Driver 0: Device: NVIDIA GeForce GTX 260 Provider: NVIDIA Date: 10-16-2010 Version: 18.104.22.16899 VendorId: 10de ProductId: 5e2 Stepping: a1 No support for GPA Instrumentation GPA install directory: C:\\Program Files\\Intel\\GPA v4.0\\ GPA version: 4.0.144237 Current user is in Administrators group: YES