I just reinstalled The Witcher (original version) and downloaded the EE patch. After installing the game, I registered and got a confirmation e-mail with my CD key, assuring me the game is registered. I ran the TWEE_Upgrade.exe patch file, proceeded to the section where it informs you that it will check to ensure the game is registered, and every time it immediately gives me an error dialog saying the game is not registered. I have uninstalled and reinstalled the game, and that did nothing to help. I don't really know what else to try. As it stands, I can't install the patch as it gives me an error every time I try.