EDIT: For posterity, the problem was a bad memstick. Solution was to get a different memstick.
Total newbie to FreeBSD here.
I'm trying to install FreeBSD-10.1-RELEASE-amd64-memstick.img from a memstick (written to it using Win32DiskImager). I can get as far as the Boot Menu, but trying to proceed from there (i.e. using the Boot Multi User option) leads to an Error 19 (see image).

I've tried the
Total newbie to FreeBSD here.
I'm trying to install FreeBSD-10.1-RELEASE-amd64-memstick.img from a memstick (written to it using Win32DiskImager). I can get as far as the Boot Menu, but trying to proceed from there (i.e. using the Boot Multi User option) leads to an Error 19 (see image).

I've tried the
set debug.acpi.disabled="hostres"
fix for 9.x, but that doesn't work either. Any help would be appreciated.