How do the present gallery and lightbox settings handle images exceeding the 800x1200 maximum set, and how big are the filesizes?
1. Photos larger than 800 wide or 1200 high will upload - but when upload is complete, may not be accepted for the gallery, which may ignore the photo.
2. Photo 800 wide and 1119 high of 96KB ended up as: 73K
3. Same photo of 800 wide x 1119 high of 320 KB also ended up as 73K (but will be slightly better quality due to the better quality source).
4. Both photos ended up at 800 pixels wide.