AirNav, Dave et al.
In view of the comment re SBS1 I re-checked my Main PC which has SBS1 running and also I connected RadarBox and had that on at the same time. Both working OK, even if a bit sluggish. However, although I had the latest program ARNB12 2007/09/08 shown I rechecked the RB driver version on this PC and it showed 2.0.0.0. I left both devices connected but shut down RB and went to the control panel route to the drivers, selected USB controllers, Airnav and then update drivers. When I used AirNavs "Have disc" it only showed the .INF file. I clicked OK and it then went back to the previous page which listed AirNav as the only option I clicked on it and it gave me a message which I ignored by clicking OK and then seemed to update something. When I checked back to the details page I have Primetec 27/06/2007 2.2.4.0 installed. I did the obligatory reboot and re-opened RB and all is running OK. Airnav drivers as quoted above still installed. I am no computer expert but more by luck than judgement I appear to have it working. It also appears that when I had the crash incidents after I had upgraded the laptop yesterday I had in fact not got the correct drivers, but it still ran !. Now both PC's are fully up-to-date and my laptop has been on again this morning since 6:00 with no problems.
Airnav, perhaps we need some easy way of checking the Firmware version as well as the program version and driver version separately.
Dave I can't remember exactly what the message I got was but ignoring it was the right option. Best of luck. Mike