Strangely, I'm getting 500 error as well. Error log shows "[Wed Jul 04 22:37:44 2012] [warn] mod_fcgid: read data timeout in 31 seconds" over and over pointing to setup.php
However, all my php.ini settings are at 360 seconds for timeouts...
Edit:
Quote:Premature end of script headers: setup.php, referer: http://inthemdl.net/zp-core/setup.php?xsrfToken=5e0893556fd481928d80fee7d984af2b456f867e&charset_attempts=1&FILESYSTEM_CHARSET=UTF-8
Repeatedly, though it changes if I start the setup script over again, but still ends up pointing at setup.php just different steps of it.
DoubleEdit:
Apparently the control panel I use (VirtualMin) had a setting in the control panel that limited execution time not taking into account the php.ini settings.