The solution presented on comment #11 worked for us with "ubuntu-14.10-server-i386.iso" with an USB Boot PEN created by "Universal-USB-Installer-1.9.5.5.exe" under Windows 8.1.
We've copied the "gfxboot.c32" file from a "Linux Mint 17 Qiana" distro.
cp /usr/lib/syslinux/gfxboot.c32 /media/user/UUI/isolinux/
The solution presented on comment #11 worked for us with "ubuntu- 14.10-server- i386.iso" with an USB Boot PEN created by "Universal- USB-Installer- 1.9.5.5. exe" under Windows 8.1.
We've copied the "gfxboot.c32" file from a "Linux Mint 17 Qiana" distro.
cp /usr/lib/ syslinux/ gfxboot. c32 /media/ user/UUI/ isolinux/