Picture settings (Build 349)

On the picture settings in Visdual Editor, I set the picture size to 85 (width)

I also click the display as thumbnail and set a size.
On displaay, the sizes now all differs as the original thumbnails are different sizes. 120, 100, and 85.

Should they not all display as one size (85 as set)
If I take "display thumbnails" away, the set size is shown, but then it's not clickable to show larger images.
How do I change to show thumbnails at a set width but also allows me to click for an larger image?
Help, please!