Hi Milo- Windows 7 Ultimate, running on a full-fat laptop. Downloaded the latest firmware from the LEGO site for the NXT unit and installed it OK (via the USB cable), the supplied DVD also installed all the gubbins with no apparent problem on my laptop.
No big deal really, but annoying that I can't get the thing to connect via Bluetooth, esp. since all the components seem to see eachother...
Maxbert