Editor Inline Popups Broken

So, I have a fresh WordPress 3.0 install that has some glitches in the editor. Some things take a bit long to load, but my main wordpress install doesn’t take that long. The biggest issue right now is that all of TinyMCE’s inline popups show the window, but they never load their content. On the JS console, I get the following error:
color_picker.js:1 - Uncaught ReferenceError: tinyMCEPopup is not defined
I have no idea what that wants to tell me, but the only thing different with this wordpress is that I had to upload it in pieces, due to the fact that my current internet connection drops out every few minutes. I checked every folder for missing files, and 0-byte files, but all files seem to be OK. The Add Image popups and so on work because they presumably use thickbox or something. The site URL is http://theocas.net/sonicromland/ and I’d appreciate any help.