Well it's happened again - HP Warranty Repair in the UK have returned my HDX18T unrepaired for the second time.
The error is the same graphics card error: artefacts, freezes, black outs, BSODs, errors along the lines of driver 'has failed to respond and has recovered'
It doesn't matter if it's the old factory graphics driver or the latest nvidia drivers - it still fails within seconds of booting - easy for any technician to see.
I include a lot of notes and stick them all over the laptop - but they are all ignored.
I suspect part of the problem is there are too many HP departments: email support don't really read your emails. Telephone support don't really listen and lists the error under somthing like 'no video signal'.
Then the technicians gets the report from telephone support, establishes in two seconds that there is a video signal, and then returns the laptop. He ignores all my notes.
Gross incompetence! I'm now six weeks without a laptop, having to book it in for a third attempt. Surely it's not in HP's interest to keep paying courier costs.
Beware everyone of HP UK warranty support.