bt4-final.iso won't boot from USB stick

[Drummynator]

Hey everyone, I'm new to BackTrack and I burned the iso onto a USB using unetbootin and when i try to boot from the usb, it just hangs at the black screen with a blinking underscore. Any help would be appriciated.

the usb is an HP v125w 2gb (also tried on a SanDisk cruzer 8gb (which has worked before with other isos, still does the same thing))

when unetbootin was downloading the iso, it got interupted, so i used the same link it was getting the iso from and downloaded it thru google chrome.

I did an md5 check to see if it was corrupt, and it wasn't. I'm not sure what i'm doing wrong.

[Snayler]

Have you formatted you USB drive before using unetbootin?

[Drummynator]

Have you formatted you USB drive before using unetbootin?

yes, as fat32 like it says

[Archangel-Amael]

Try again, and also might want to check on the HCL section here to see if your hardware (which you did not specify) is compatible.