This controls the size of the full screen images and should be adjusted to work for your monitor.
This controls the size of the thumbnail photos displayed when viewing a roll or set. Leaving this set to the default of 180x180 will result in better performance as thumbnails of that size are cached in the database and don't have to be generated on the fly.
EXIF data is encoded into the photograph by the camera when the photo is taken, and includes information like the shutter speed and whether or not the flash was used.
When set to Yes, links display at the top of most pages to assist in navigating from photo to photo, roll to roll, etc.
Ignored if Display Navigation? is set to No. When both are set to Yes, the previous and next photographs will be prefetched when you are viewing a photograph to improve performance when switching from photo to photo.
When set to Yes, this sends all of the thumbnail information within the web page. When set to No, each thumbnail is a separate download from the web server. Yes gives better performance, but if you have problems viewing the thumbnails try No.
When set to No, this tells your browser to download and save videos as files. When set to Yes, this tells your browser to display the video inside the browser. When set to Yes, to download and save a video, right-click on a video link and select "Save target as" or "Save link as".