Hi everybody!

Hope you'll find a solution to my very annoying issue.
Before posting this new topic, I searched for an existing one. I found some of them apparently having the same problem as mine, but no suggested solution helps.
This weekend, I installed the DVD version (not Steam) of The Witcher 2. Nothing wrong happened during installation process. At the end, launcher asked me for the serial number. I entered it. No problem. After that, the launcher downloaded the different patchs (pre-EE), then the big Enhanced Edition patch, then patch 3.1, 3.2, etc.
I restarted Windows (XP SP3 version 32 bits) as requested, and tried to start the game with the launcher. Then, Geralt's medallion pops in the center of my screen, and... nothing happens. Process is still running anyway, I had to kill it manually with a process explorer. So, I read some topics, and tried everything: turned off my antivirus (NOD32), turned off my firewall, unplug the network cable, clean uninstalling the game (deleting installation folder), then manually installing every patch from 1.35 until 3.2 manually, then trying to run the game with the bin/.exe (not the launcher), nothing helps. However, the manual install made me notice that the trouble happens as soon as I installed Enhanced Edition (the game starts correctly until patch 2.1). I updated my video drivers, what else? uninstalling then reinstalling .NET framework 4, starting with windowed mode, lowest graphic settings... nothing. When I launch the /bin/.exe, Windows sand timer is displayed one second, and that's over, nothing happens.

I could play the game without Enhanced Edition, but I think that would really be a pity. If the game starts without EE installed, there is probably a way to make it work with EE installed... Please help me! I'm running out of brilliant ideas...

My configuration: Windows XP SP3 32 bits, ATI HD4870, Core 2 Quad Q6700, 3GB+ memory