Receiving FM

Hello All,

I am fairly new to gnuradio so any help is greatly appreciated. I just
recently got gnuradio installed and I was running
Everything works but the local radio station makes the people sound like
chipmunks singing the christmas jingles and I am getting this as output
the shell while the algorithm is running:

Traceback (most recent call last):
line 276, in set_data
points[:,1] = Numeric.concatenate ((dB[L/2:], dB[0:L/2]))
ValueError: matrices are not aligned for copy

Anyone have an idea how I should remedy this situation. Thanks.