Last Sunday I noticed a creak coming from the base of the nearside screen frame. It could be reproduced when stationary by moving the nearside frame slightly fore & aft. It was a dry creaky noise. I squirted some silicon lube in the corner and tightened the fixings, and hoped.........
But today is was still there after 230 miles! - a good run out.
It turned out to be the bonnet creaking on the bulkhead tape. So I've applied some silicon lube to the tapes and fitted a couple of small neoprene buffers on the rear corners. I can't make it creak now in the garage, but haven't had time to get back on the road.