I don't know for sure why this is happening but I have an idea. If you are using Notepad to edit configs, it might be worthwhile getting another program called Notepad++. Its free. The config for Redpower2 also appeared on one line and Eloraam suggested using a better text editor in an FAQ. If the millenaire config is on one line for the same reason then notepad++ might display the formatting much better.I will say a few things with Millenaire. 2) Editting the configs are a bitch. To get it to work I had to do some minor editings, and his config files are essentially all one line, so it is really hard to look through and make changes needed.
I really like underground biomes. It does make the world look nicer but I am considering uninstalling it on my instance because its just too much of a clutter for my inventory.For myself, I'm working on a personal pack using Ampz as a starting point. I then added most everything not related to IC2 from Unleashed, then DimDoors, Chococraft, and UndergroundBiomes...and spent an hour trying to deal with block id issues
Mekanism machines are able to accept all types of power (and it adds universal cable which can transmit all different power too). Its generators can output to none UE machines too. However, I think don't think the machines from the other UE mod machines like Electrical expansion's wiremill necessarily work if supplied with MJ or EU (unless via universal cable). It would be awesome if it works though I will try it later.You know, IC2 and buildcraft are completely compatible with mekanism/UE. (compatible in that you can use the energy interchangably)