Did you clear the cache when loading the mod after installing patch A? (Actually, this is always recommended and it would be best to have these lines in your CivilizationIV.ini-file: Code: ; Disable caching of file system (may slow initialization) DisableFileCaching = 1 Depends on the underlying terrain. If terrain = savannah, then the normal yield of coffee is 3, if marsh then it will be 2. Jungle decreases this by -1 and the bonus ressource adds 2. So, if your terrain is savannah, then yes, the result is correct and as intended. Don't forget that for the best yield you should create a plantage anyway (which means: removing of the jungle).