I am having the same touchpad issue. I had it on the first model I bought and I returned it, then they gave me a brand new identical model and it had the same problem!! So I am sure it is a flaw with the hardware design of the laptop. The issue didn't arise until a couple days after I started using it, so I am assuming it is a connectivity issue with the touchpad.
You've written that there's no maitenance hatch. Does that mean that there is no possibility to add more RAM or replace hard drive? I'm asking because a few stores in my country state that there is extra memory slot for RAM (there are 2 and one is already used), which should mean that futher improvement should be possible.
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