I have just recently purchased a 16gb flash drive and have tried using Unetbootin and LiLi both had the same result. On startup it would go to a black screen and then it would display some text before stopping at:

end trace b8c1************

How can I fix this?
I am using an Acer Aspire with 4gb memory and a Pentium processor. I'm also using the 32-bit GNOME version of Backtrack.
Any help is appreciated.