Hello I'm having some trouble with changing XML files. I've altered the BuildingClassInfos to prevent any building becoming obsolete, but when I go into BTS, the changes don't work. Everything worked fine on my PC, but I can't seem to get these changes working on my new Laptop. Apart from the difference in hardware, there are also software changes. I'm now using Vista instead of XP, v3.17 of BTS instead of v3.00 and I'm also using the BUG mod (with Blue Marble) for the first time. Could anyone provide my with help as to what is preventing my changes from taking effect? I've read about Modular XML, but I'm not very good with this side of things. I can change a 0 to a 1 like the best of them, but I don't really understand many terms that are used. I'd very much appreciate any and all help with this. I'm willing to remove the BUG mod, and go back to v3.00, if they are my only options, but I'm hoping I can keep the BUG mod and still alter the game to remove most of the aspects that I don't like. Thanks.