Well, I erm need to own up to being a bit of a dobber, especially after having the cheek to complain about how long it took for my chain to arrive.
I ordered the wrong size!
My chainring and Sprocket are both 3/32" and for some unknown reason I ordered a 1/8" by mistake. I know that I could use it but it just seems to wallow about on the teeth so the old one has had a damn good clean and lube and sounds very quiet again so I'll be out in the morning for a test ride to somewhere that will sell me Coffee