[Numpy-discussion] Error in deallocation ?

Hi I keep on getting this error : *** Reference count error detected: an attempt was made to deallocate 7 (l) *** It happens on numpy calls (multiplications, call to inner(), ...), but I didn't find the real reason. I'm using Numpy '1.0.4.dev3875' with Python 2.5.1. Someone has a hint to solve this ? Matthieu