Bob,

in this Ubuntu 12.04 machine I can run Squeak 2.2 with its respective
VM. Earlier than that doesn't work because it needs libc.so.5 (and, in
some cases, libm.so.5 as well). Using a 4.0 VM I can run Squeak 1.16,
which is the oldest that I have. I also have the 1.1 re-release with the
APSL license, but that doesn't include the VM and the image gives me a
blank window the the 4.0 VM and a segmentation fault with a 2.2 VM.

-- Jecel