Plop unable to boot from usb

[rm]

I have a new HP G72 laptop that I'm trying to use plop with. Everything seems to have installed correctly but I can't get it to boot from USB. It searches for the USB, goes through all the drivers then tells me to retry. I have tried all 3 USB ports on this computer. I have booted from this USB on another computer (without Plop) so I know it works I just can't get it it to work on this one. Anyone had similar experiences?