Have been using the box connected to my desktop for past few months with excellent results & no problems....Decided to try it on my laptop which is dual core vista premium....worked fine...well almost fine, seemed to lose contacts at a shorter range than usual (This is via my Antenna)...Then suddenly, all aircraft displays went white (have kept default aircraft colours) & lost contact symbol appeared againt all aircraft except network ones...after a few seconds everything returned to normal but some time later it happened again and after a bit of poking around, got it all back..unable to say what I did.
The set up for the laptop is different as am using Lindy USB Extender with 15M of Cat5E cable connecting the two units of the extender....The instructions for this say to use external power supply if the USB device (i.e AirNav Box) is drawing more than 100MA....I have tried this but the same problem occurs...The one difference that I noticed was that the short range problem was resolved making me think that the laptop USB socket could'nt supply the required current causing a reduction in the gain of the receiver in the Radar Box & maybe the loss of all contacts....The software is installed in the default location & have Norton Anti Virus/Firewall installed (Same as on the Desktop)....So firstly can someone advise me as to the current requirements of the Navbox (Seem to recollect having seen a figure of 500MA somewhere) & secondly any ideas.....I must add that when I first got the Box, I did try the laptop with the supplied antenna & did'nt have any probs but that was with far fewer aircraft being picked up but now I have an external Antenna in use which gives me a huge increase in contacts.