Just installed GhostBSD 4.0 Alpha, and there was a couple hiccups that I noticed. During the initial install, the installer failed both using the option of using the entire disk, and with the partition editor on a hard drive that previously did not have BSD installed. I ended up using GhostBSD 2.5 to create the partitions in order to install the 4.0 alpha. In addition once installed, my network card was not enabled. I enabled "gre" network module and the corresponding "re0" for my ethernet card in boot/loader.conf and then rebooted the machine in order to get my network up.