Opened Movie Studio to find the preview pane incredibly small. I'm supposed to be able to drag this to make it bigger, but I have never been able to; I'm not able to drag any splitter. It's never been an issue before, until this happened.

I tried restarting Movie Studio, restarting my computer, and I reinstalled it as well.

This is what it looks like: http://i.cubeupload.com/ic2OSa.png