Using the 2014.6.24 release on a usb stick (created simply with dd from the iso), I am not able to boot in UEFI mode on my laptop. (Asus UX31A)
I get to the initial boot menu, but then when selecting the first option, the screen blanks for a second and then the system reboots.
Booting in legacy mode works fine. (But this is not convenient for installation because this system does not have the option to boot from the hard disk in legacy mode