Hi Dave
I did try the BMW 1.4 several months ago but I just could not get my laptop to install the driver for the USB cable, I've since read that Windows 10 is not compatible with the cable, anyway I sent it back. I've now got hold of an old Windows 7 laptop and will try a cable with that when I get the time.
Regarding the mirrors, it's not that I need to keep adjusting them, it's only when they are working correctly can I lock out the dipping of the passenger mirror, when they are not working the passenger mirror dips when reversing, which is something I don't want to happen when for example I'm in a car park and reversing into a spot in between two cars I need to be able to see out of the nearside mirror which I can't if it's tilted down to the ground, I can't see how close I am to the car on the nearside.
I'm the only driver of my car so the seat and mirror settings are unchanged. I did go out the other day and found the mirrors were working , and when I reversed on to my daughters drive the passenger mirror didn't dip, but when I got back home and reversed onto my drive the mirror dipped.
Brian