It won't even start. The demo did.

[Yuhaney]

I have totally no idea about you're problem, but one stupid question came to my mind:

What version of the game you bought (boxed, download; if download: Linux or Mac)? And from where?

.. could you provide the site you got it from, if it works for you??

I bought boxed version, and have no problems with that. So: no, I can't. But post the hpl.log, I guess Developers will find solution to you're problem!