Workaround bug in CUDA runtime. When using CUDA 2.0, it's required to use a driver that supports CUDA 2.0.

src/nvtt/cuda/CudaUtils.cpp

@@ -68,6 +68,26 @@ static bool isWow32()
 
 #endif
 
+#if	NV_OS_WIN32
+
+static bool isCuda20DriverAvailable()
+{
+	bool result = false;
+
+	HINSTANCE nvcuda = LoadLibraryExA( "nvcuda.dll", NULL, 0 );
+	if (nvcuda != NULL)
+	{
+		FARPROC lcuStreamCreate = GetProcAddress( nvcuda, "cuStreamCreate" );
+
+		result = lcuStreamCreate != NULL;
+		
+		FreeLibrary( nvcuda );
+	}
+
+	return result;
+}
+
+#endif
 
 /// Determine if CUDA is available.
 bool nv::cuda::isHardwarePresent()
@@ -90,6 +110,14 @@ bool nv::cuda::isHardwarePresent()
 			return false;
 		}
 
+		// Make sure that CUDA driver matches CUDA runtime.
+#if NV_OS_WIN32 && CUDART_VERSION >= 2000
+		if (!isCuda20DriverAvailable())
+		{
+			return false;
+		}
+#endif
+
 		// @@ Make sure that warp size == 32
 	}