Photopost 8.3 standalone install.
When viewing an image clicking on any of the thumbnails or arrows below it does not produce the expected result, although the link appears to be present.
Generally what happens is that the "larger" image of the one being viewed opens in lightbox.
IMGP1401 - snowHeads snowMediazone
In IE10 the word "null" appears at the bottom left of the lightbox image, although this doesn't appear in Chrome.