If you're using larianvault:
1. go to the location on your hard drive where you saved the downloaded files
2. remove file called DragonCommander-2.bin
3. log in to the Larianvault and download the new Dragon Commander downloader
4. run the downloader and make sure let it download to the same location where your old files are
5. the downloader should only download DragonCommander-2.bin and see that the other files are there
Gamersgate got an update today on the corrupt file and they should have fixed it by now as well.
Thanks a lot!!! It works flawlessly. I've played the game for about four or five hours last night and it was absolutely flawless. No bugs or glitches that I ever noticed. All in all an amazing game.
