Thanks for checking. I had already found the hardare manual, and it looks to me to be directly above the CPU/heatsink.
Spoke to Lenovo who confirmed this and said they would treat it as a DOA. Annoyingly the quickest way to get a replacement seems to be to order another, and at the same time return this one for a refund. Thank goodness for credit cards!
Feels like I am being a bit fussy as I am sure some people wouldn't have even noticed, but really dont want anything pressing down on the CPU or it may well cause problems later on in the day. Still, the guy on the phone said he thought he might know what it was, so doesn't sound like I'm the first.
Thanks again. Will be back when the new one arrives. Looking forward to it - was very impressed with the machine in all other respects. Only minor was the trackapd but I'm sure a few tweaked settings will help.
I know it is very subjective, but is there a general consensus on the best trackpad settings that I can uses as a starting point?