Me again, haha.
I'm having a lot of difficulty with your image sizing system, I've never experienced anything like it before with other themes that I've used.
Here is my site: http://www.flylanddesigns.com
Here's my problem: When I click on a thumbnail in the portfolio, the tall portrait images are shown at a larger size than their original size, so it stretches them and makes them blurry. For example, all the images I uploaded were a max height or width of 800px. But it's making them appear as 930px tall, which stretches them quite a bit. For example, check ou the Captain America vs. Batman image. It stretches it, and then when you click to bring up the lightbox, it brings up the original sized image of 800px.
I've changed all the image sizes in the function.php file to be 800px max height for the 'fullsize' category.
I've also changed the settings in the Wordpress Media menu to be 550px x 800px for large images.
And then I ran the thumbnail regenerate plugin. No effect.
And when I try to mess with the CSS so that the whole container has a max height (of 800px), it actually cuts the image off. I can't understand this, because it seems to be set that the image fills 100% of the container, so shouldn't shrinking the container shrink the image?
I've got to have this site up and running in a day or two. Please help!