Last night I tried again, from scratch, to complete the install of 8.10b. I used the internet install method, as recommended on this forum. I was very careful to follow instructions to a T. I even rebooted Kunbuntu after installing all the updates just to be certain that I was starting with a clean, working OS.
I got thru the pre-install script, no problem. About 2/3 of the way thru the install script I get this:
E: Broken packages
#### Package pluto-orbiter failed (/tmp/tmp.DyXny10491) - We wait
10sec and tryagain - to stop retrying press Ctrl-C.
After waiting for awhile for it to get past it, I eventually killed it, and restarted the script. The second run went thru without error, just like the first time I tried this. After completing the script, and running the post-install I rebooted. After reboot I get the AVWizard, then a bunch of software installation occurs.
After that, I get a black screen with a mouse cursor. Nothing else. F7 does nothing, the machine just sits.
I really think this issue needs to be looked into a little more closely. There are too many reports of black screens for other reasons that the developers are lumping this one into the same category and not giving it any attention.