We was driving down the motorway and after about 1 hour the computer beeped 3 times then 15 mins up the road it did it again, my wife looked at the computer screen and said it has a picture of the car but it had a dark line at the rear. We think it may have been the boot as we had put some shopping in there. We continued home as the boot looked closed. The next day we set off for Southampton but first I looked into the boot/tail gate (estate model) and pushed the junk well back. About half hour down the M3 and beep, beep, beep, beep, this continued for 2 to 3 mins. (loads of beeps). I stopped in a layby and my wife got out, opened the boot then slammed it closed but said the boot door was closed and nothing in the way. So far no more beeps. The picture had the same, car with dark line at rear but after my wife had shut the rear it never came on. Any ideas ?