I got a message on the computer today saying headlight was out,so i lifted the bonnet to see if it needed a wiggle....when i put my hand down to the back of the headlight(Battery side) i noticed that the earth lead was red hot!!
It was not the brown wire but the one which is encased in the plastic, nearest to the front of the car....

Is this meant to get hot!?? 

Dont know Andy,

Its only that wire,the brown wire and the smaller wire are ok and so is the actual clamp that goes round the battery post,there not hot,just that one....

Strange? 

No, should not get hot, but is a definate tell tale sign that you have a dodgy earth joint somewhere. Be very meticulous when cleaning up the connections at each end, and the crimped joints are known to fail, which could cause a similar fault.

Give it utmost priority in sorting it out, and I would advise NOT to use the car until you have done so.

Thanks for the replies,sorry i never answered sooner,internet playing up as per usual....good old Sky!

Ok,i will do it asap,is there a guide to doing it? or what should i do?

Thanks again