As already suggested, please try a different brand of USB stick.
Also, many BIOS's support various USB boot emulations, i.e. "USB boot as ---> HDD, Zip drive, CDROM" etc.
I cannot recall them off-hand, but I have such a BIOS somewhere so I'll take a refresher on it later;)
Anyway, go and look through your BIOS and see if it has any of these USB boot emulations and try them.
Finally, can we clarify..........is this BT3beta or BT3final??:confused:

