I installed LL 3 yesterday and also had my cursor disappear, (64 bit)
On trying to see if it was a software problem or if it was something I had done, I managed too dis enable my touchpad (definitely my fault ha ha) Having to use a mouse.
Otherwise seems as impressive as normal

When I install a new upgrade, I always have a couple of days trying too push it to its limits and try things I normally wouldn't, then do a total new install, as it only takes minutes.
I'll continue pushing it, today, do a fresh install tomorrow, and report back.
BTW thanks to all

Keith