boots and installs fine in Vbox, and on my mini itx system with a Geforce 520TI no problem, but on my main system will not boot in either normal or failsafe modes, I have the same problem with the 201109 release as well.
Gigabyte GA890 MB
16gig Corsair Vengance PC1600
750gig Hitachi Sata
Geforce 550TI 1gig DDR5
Using a Debian live disk I can boot fine and just about any other distro is the same, all versions of Linux Mint fail the same way, I have LMDE UP3 installed by going back to the 201112 disk, is there some way we can get that live boot configuration working again? seems strange the old config boots and the newer one fail.
6 failures so far in Vbox for the upgrade so I'm not so confident doing that with my current system....
I hope this helps spur some changes for RC1 and on...
LMDE x64 20120409 UP5 AMD FX 4100 x4 3.6gHz Gigabyte GA-970A-UD3 16g Corsair Vengeance PC1600 Hitachi 750gig sata 3 EVGA Geforce 550Ti 1g kernel 3.2.0-3