The answer has been given quite a few times Bob already.

There is an increasing proportion of users that want to be able to use BB as their sole piece of creative outflow. The main reason has to be the utilization of memory on Windows Ultimate. Ok, I have used jBridge for ages and it works, but this is a 'stop gap' only.

With an increase in the availability of 64-bit processors and larger capacities of RAM, Microsoft and Apple both have begun to develop and release upgraded versions of their operating systems that are designed to take full advantage of the new technology. In the case of Microsoft Windows, the basic versions of the operating systems put software limitations on the amount of RAM that can be used by applications, but even in the ultimate and professional version of the operating system, 4 GB is the maximum usable memory the 32-bit version can handle. While a 64-bit operating system can increase the capabilities of a processor drastically, the real jump in power comes from software designed with this architecture in mind.

Mal