For what should be the last time (though I doubt it) falling victim to the WSoD has NOTHING to do with software. It doesn't matter what firmware you are running, what hacks you are using or the last item of software you just installed - it's not a software related issue.

The WSoD has everything to do with hardware and nothing to do with software, oh and bad luck during a reboot.

As for a replacement or repair:

1. As it's a new unit, Amazon will most likely replace it fairly quickly. The risk is that you get a replacement which also has the WSoD design flaw - early and late model 770s don't seem to suffer from the WSoD, so Amazon may have mid-production duffers in stock.

2. If you have Nokia repair it, it will take 4-5 weeks (if you're lucky) and in theory Nokia should ensure you receive back a unit which is free of the WSoD flaw. When I sent in my N800 for repair, Nokia picked it so it cost me £0.00, which was nice (it took 5 weeks though).

If I were you, and I could stand being without the 770 for up to 5 weeks, I'd get it shipped back to Nokia for repair, even though it is brand new. The last thing I would want is to have any concerns about another WSoD at some point in the future.

The High speed kernel update should help in future.