Screen goes black and wont start when I try to boot from the unetbootin created usb stick. It works fine on other computers. This laptop is quite a common laptop. I think the problem could be relating to video drivers.
I've heard that using the nomodeset option at boot time might work, but 1. I don't know how to do this from a unetbootin generated installer and 2. The average joe shouldn't need to be messing around with this sort of thing.
update: pressing the tab button on the unetbootin menu allowed me to add nomodeset and it seems to be starting. However I still believe this issue can give new users a bad first-time experience and needs to be fixed.
update2: The purple screen came up and it looked like it was going to boot with nomodeset... Sadly that went away and left me with a black screen.