I had kernel-2 (not the zImage that was later released) and packages for it installed without the bootmenu, worked fine. Flashed with bootmenu, spent a couple days setting it up while using CSSU, downloaded the four new DT files (deleting the old first) and ever since then it won't shutdown.

So its gotta be bootmenu+DT, the DT files released on the 18th or the radiation I'm receiving in America from Japan. Do you still have a copy of the previous mini-rc that I could try? Is it safe to downgrade from kernel-3 to kernel-2, was it only kernel-1 that had packaging problems?

EDIT: And yes, I did reinstall kernel and mini-rc even though dpkg -l showed them installed with correct version and it had no effect.