Just got my new laptop, Alienware 14, which comes with Windows 8. Started playing with The Witcher 1, no issue encounter so far. I have The Witcher 2 installed too. However, I am always encountering "Windows error" popup after exiting from the game. After that, my mouse pointer will be missing. The only way to get back my mouse pointer in order to close that "Windows Error" popup window is to press Ctrl-Alt-Del to bring up the task manager window.
I had tried disabling everything, rebooting Windows 8 in "cleaner" mode, the issue still exist. For now, I will continue with Witcher 1.