V2 Reciever Problem?

[07jkearney]

I just received my V2 Reciever, and it seems to work great, but connecting 2 medium motors to one output poses a problem, as they do not turn but simply emit a buzzing sound. It works fine with other combinations of motors, including 2XL on one output. Does anyone know why this is happening? 2 Medium motors on one output of the older Reciever work fine?!?

[vmln8r]

There's an explanation on Technicbricks: http://www.technicbricks.com/2012/11/lego-power-functions-incompatibilities.html

[07jkearney]

Many thanks :)