evening all i have a problem with the reverse lights on my 1996 disco v8 manual. when i put it in reverse the reverse lights come on then go straight off again but if i hold the gear lever in the rverse position they stay on???. now someone at my local land rover specialist told me to adjust it but thats all he said. so has any off you guys had or got the same problem and what is the fix i.e what do i need to adjust or replace and where do i find it?