Image size doesn't go bigger

[rvdsabu4life]

www.laurelvalleyhardware.com

In the categories, the images seem to me scaled 10% of the orginal image size.

I have changed the image settings under admin>configuration>images but it only changed the "gardening" image.

What setting am I missing to turn the category images to a set size?

[fairestcape]

Check the sizes (in pixels) of the ACTUAL images.

The gardening image is 200 X 200. (and has the ridiculously long name of "Garden_Tools__Gardening__Trowel__Rake__DIY_Tools__Pruning_Shears.jpg")

By way of contrast, the Bolts, Screws, Nails image is 53 X 40.

[rvdsabu4life]

Yeah Ive looked at that. The actual size of the bolts is 360x271px.

This is what the image properties says in the browser:
360px × 271px (scaled to 53px × 40px)