[Ubuntu-BD] Help needed to run Live CD

[Pritimoy Das]

Hi
I was using ubuntu 9.01 for last 5 months. I also used Linux Mint 8 Helena.
Yesterday I went to join Bontu-Mintur Adda, It was a nice gathering!!
We really enjoyed it.

I bought 2 customized DVD from the Adda stall. But when I tried to run live,
there is a log in screen in the desktop, which can not be removed. I tried
both DVDs, but same case.

Can anyone help me to solve this problem? I want to use live ubuntu 10.04 or
Mint 9 first in my pc.
-- 
With Thanks-
Pritimoy Das.