Only been running a bit today and only a couple of things to speak of:
had the no sound, kmix does nothing & has no options, fixed with alsamixer;
classic ubuntu popping sound when I did get some - the fix is all over the ubuntu & mint forums already
during install, I always "Skip" the locale download stuff. When I did that dialog box froze from then until install complete, no further feedback as to what was happening. I wasn't sure if it had stopped but I saw searching attached drive going on so I just left it be- a less patient soul or newbie would have probably aborted install.
pain in the butt for people with multiple distros is grub2 os-prober!! This test machine has 4 other systems on it, all running with /home within root but all sharing a common partition for shared data (music, videos etc). Gave Mint KDE the mbr on install to let os-prober do it's thing. It found all the other opsys; however, would not boot any of them. The problem turned out to be that the os-prober gets its partition numbering stuffed up. eg (all the same problem) Sidux is on sda7 which it finds but the grub.cfg entry generated has both hd0,7 (new numbering) BUT hd0,6 used for init line; so of course it cannot find the kernel to boot. I edited grub.cfg both from /etc/grub.d and directly (I know I know

) knowing the prober would change and this happens every time, but only for other systems. It boots itself fine.
Now, I had never noticed this on the other machine because Mint 8 Main did not have control of the mbr so it only ever booted itself. Did a test and yep same problem. SO, it would appear that the os-prober is not working as it should on either version of Mint8 installed with multiple opsys. I have no idea if this is a Mint problem or an "up-the-line" problem for the Grub2 developers?
I can be more specific if you want. Btw, worked around by giving Mepis the mbr - Mint installed grub2 to install root.
Just want to say, GREAT job Boo - well worth the wait. Kubuntu 9.10 is their worst effort for a long time and you have made a workable solution from it. Well done again!
Rhodry.
Life isn't about waiting for the storm to pass...
it's about learning to dance in the rain.