Fable 3 Cheats
disable/uninstall all AV, firewall and other security software. right click and run as admin on the trainer. something is blocking/interfering with it or you have wrong game version.
( fable.wikia.com/wiki/Mourningwood_Fort#Mortar_Game )
Thanks for the Trainer!
I'm using the Steam version, Win 7 64, AV and FW enabled, trainer's worked fine, as has the game, from the second I started using it.
Your actual problem sounds a lot like the problems one of my friends is having, and he doesn't use a trainer. Try the Steam support forum.
firewall and other security software.
on trainer and game.
version and distribution.