Hmm, that's odd...
It looks okay there, but clicking on it at all gets me the nasty, unresponsive program things, like the menu bars turning completely white and Windows reporting it as unresponsive. I just did that, and took a screenshot, and was typing this up, when it eventually popped up, all nice and responsive!
Now it's instantly responsive every time I start it, hurray!
I wonder what the heck made it go unresponsive for that long, then start working.