Hi Coastie,
I noticed it changed my custom login sound back to default too, but I just changed it back after install. It did keep my custom wallpaper and login and boot splashes and script changes with no problem, which was really nice. The screenfetch commands in my .bashrc file did not update, but I just took them out and reentered them and all was well. Smooth smooth upgrade. Grub installation worked smoothly as well with two other Linux distros on the disk, and LL booting last in the order.
TC