It does indeed fix a couple of problems when I open the tileset editor. However, since I rarely use that, and I need the acceleration up at max for some of the things I do, I'll leave it up. But that's just me. If anybody is experiencing similar problems, this will fix it. Other problems I noticed was a random grey line showing up at the top of the editor area in the tileset editor. It looks like a tile with grey on the top, but when I store the image, it's not there. This problem is also solved by lowering the video card acceleration.
Also: If you don't have a "Video Card Acceleration" tab, it might be under the "Troubleshooting" tab instead.