WavefunctionP, just downloaded your update and everything seems to be working with the reactors so far, but when i scroll over the 2.5 and 3.75 meter fusion reactors in the vab tab to select them, the picture expands until it takes up the whole screen then disappears, but still lets me select it. This used to happen with the 2.5 meter refinery but was fixed in the previous version of interstellar i was using. Not a big issue, just wanted it to be known. Edit: I tested them in sandbox and they worked, but the reactors wont work in my career save. I may have messed up the config file as i adjusted the costs to afford them, also I switched from fractalUK's latest interstellar to wavefunctionP's if that makes a difference. Any help would be appreciated.