Python crashing when calling pyopencl.get_platforms()

Question

I cannot call pyopencl.get_platforms() or .create_some_context() without python crashing. The exception in the dump file is "The threat tried to read from or write to a virtual address for which it does not have the appropriate access"

Any ideas?

Specs: Windows 7 64 Python 2.7.3 Cuda 5.5