Another CSS Issue

[Abronsyth]

So, I went through and edited my side bar, but now it's being stupid. I set the height of the side bar to be 200px, and it's not responding to having a set height. Instead it's being fluid and changing in height to take up the whole portion of the content that it's on. Here's what I mean:
(certain words in the screen shot have been censored to keep all you guys from attempting to find my site XD)

On the home page, height it's supposed to be:


On a different page, height changes to fit page, like it should NOT:


Anyone know how to fix this rather irritating error?