Thanks visiter555 & Sylvia_intel, This afternoon (after unsuccesfully trying to install Windows 8.0 64-bit to an SSD, in which the installer didnt want to start at all (black screen)), I've decided to return this unit to the shop where I've bought it. They are sending it in for repair / replacement.
I hope to receive a good working device in the next couple of weeks. When I have an update, I'll let you know via this thread.
Thanks for all the advice here, this is a very valuable forum!