RavingArmy: I can't help but get the feeling I must be doing something wrong.
I'm running Win7 64-bit. When I launch the game, there's no prompt to patch to 1.2. The "Downloadable Content" option is still in the launcher menu and indicates the only DLC I have is "Troll Trouble." If I run the patcher by itself (run as administrator), it says the game is up to date. If I try to download the patch manually and install it, it says the game is incomplete. If I uninstall and reinstall the game, the patcher runs after installation, but it's right back where it was.
What am I missing?
Proceed like this:
1. Uninstall the game
2. Delete any left-over files (except for the stuff in your Documents folder)
3. Reboot your system
4. Install the game
5. Do not start the game, apply Patch 1.1 right away instead (see OP for link to 1.1, make sure you're using the right patch for your version of the game (retail, gog, etc))
6. Apply patch 1.2 manually (see OP for link to 1.2)
7. Start the game, see if it worked and report back here.
Also, re-download the patches using the links I gave in OP. Do not use the files you already have.