Ok, after a clean install of ts12, and registering all my paid for serial numbers, I let trainz do it's thing. I have been unable to get Murchison to reinstall correctly. I have shut all other activity down while it tries to down load part 1 or part 2. I always get the corrupted data response. All other paid for items installed and are available. The patched program seems to run very well, but I sure would like to have Murchison back in operation. Any cures out there?