Hi you have made a regression as I have both an Nvidia card and ATI 5850 on Windows 7 and with latest drivers CAL examples don't work if have enable ATI and Nvidia GPUs.. previously it was working at least I can run CAL and CUDA programs side by side.. if I disable in device manager (without reboot) nvidia gpu, cal samples start to work..
The problem is yours as Nvidia CUDA works with ATI GPUs installed and also CAL samples were working previously..
The error seems to be in
as Visual studio debugging shows:
'oclDeviceQuery.exe': Loaded 'C:\Windows\System32\atigktxx.dll', Cannot find or open the PDB file
First-chance exception at 0x690337c7 in oclDeviceQuery.exe: 0xC0000005: Access violation reading location 0x0000015e.
Unhandled exception at 0x690337c7 in oclDeviceQuery.exe: 0xC0000005: Access violation reading location 0x0000015e.
I also have this problem under Windows 7 x64. It only happens with 32 bits binaries. If I compiled the program in 64 bits mode, it works ok.
[EDIT] This happens both under 2.01 SDK and the new 2.1 SDK.