[ubuntu] usb boot not working on oaktrail tablet.

I have Oaktrail flatform tablet. (Atom processor)

I tried to boot by usb. using syslinux and unetbootin.

but, syslinux stop working at copyright message.
and unetbootin only black screen.

this problem is occurred all linux distribution.

however, windows boot usb is very well.

How can I do?