i am having trouble finding the answer in the other search results.

i wanted to know if there as a way to change the thumbnail size to something smaller on my page?

http://www.theshatteredworld.com/

also, when the image is clicked on, it is smaller than what i wanted. I have some images (like the 1st of the 4 images on the gallery row) that is a 800x1060 but it shows up way smaller when clicked on and opened in lightbox.

here is another exapmle: 

http://www.theshatteredworld.com/portfolio-fullwid...    

he image is 800x1060 but shows up smaller in width than the thimbnail

i tried this but the images do not change.

i tried adjusting the size again and noticed that if the image (when clicked on and opened in lightbox/popup) is short and long (example: w 1280x H720) then it works.  but if the image is tall (ex: W1280 x H1829) then the image scales to fit the screen. How can i prevent it from trying to fit the screen.

here is the example link:

http://www.theshatteredworld.com/portfolio-fullwid...