For some reason I can't activate the Multispectral Sensor. I didn't have any issue with the Altimetry Sensor. I am using the same Sat base I did with the Altimetry Sensor, but I get no right click/activate menu. I have power and everything looks good. Anybody else have an issue with this? Thanks. JerryT Edit update. I got it to work, but had to put one on another satellite in the VAB, and placement was very picky. I tried it multiple times. Sometimes it would work, and other times not. I actually have it mounted facing inwards on this unit, but it worked in the VAB, and it worked in space. Just make sure you can open it in the VAB after you mount it, and it should be good to go.