I see there is Latitude 10 or Latitude ST2E tablets. What is the difference? I see there is a BIOS update version A04 for the Latitude 10. There is a BIOS update version A03 for the Latitude ST2E.

Thanks for quick reply. And what should I notice / care about if I decide to buy online. I heard that I must use same mHz speed for both RAMS. Wouldnt more than 4GB work in 32bit UBUNTU 12.04 ?

I recently purchased a Dell Inspiron 15R 5520 which previously allowed me to select which programs use the dedicated Graphics Card and the Intel HD Graphics card. Now, I cannot seem to configure these options and it looks like the Raedon Graphics Card is not being recognised.