hmmm very strange. If i were you i would uninstall NPS and start again. There's a link to a topic in one of the stikies that will help. You should note down every device thats there without your phone plugged in, and then the ones that are there with it in.
Most likely you need to change one of the 'storage devices' to usb composite device, or change driver and force it to the NPS drivers
Thanks for the reply but before posting yesterday I had just re-installed NPS for the 3rd time. There are no changes in the devices before and after installing. Also after plugging in the phone, the only difference is ADB Interface appears!
When you say change one of the 'storage devices' do you mean USB Mass Storage Device? Before and after installing NPS there is only 1 USB Mass Storage Device in the USB Serial Controllers list.
When installing NPS it all goes ok until a message pops up
'Installing device drivers. This may take several minutes.'
Then after a short while I get another pop up
'USB driver install error
Unable to launch the 1 Driver Setup file! Code:1'
and so on for each of the drivers.
Is this the error message you would expect on Win 7 for failure to install the USB drivers because as mentioned above nothing gets set up in device manager whereas under XP something was set up (cannot remember exactly what) which then needed to be pointed to the NPS USB drivers (If my memory serves me well)? I would have expected something similar under Win 7.
How have other Win 7 x64 users managed to set up USB drivers and ADB?
Anything else anyone could think of that I could try?