K2 component limiting max image size

The K2 component is limiting the max size of the images in the site. How do I get the size of the images to be the full size they are in the actual image? For example, the slider I'm now using is loading images that are 900 x 300, which seems to be set in the K2 params. I have changed that to 960 to match the width of the banner slider in the template, but it's still loading them at 900px wide.

How do I get it to load the full image size, or at least change it in the k2 extension to the image x-large size is bigger that 900px wide?

Thanks.

Found the issue, but don't know how to stop it from happening. The item has an image stored in it, and even though I updated the size of the image to load it seems to be caching an image size within the 'Image' tab of the item. I have to delete the image in there, then reattach the image and save it.

I also have to do this twice, because it fails to save the changes the first time.

Please download pakage file again, i updated bug about mysql when we change images of demo items

Regards