This is probably user error somewhere, but I'm kinda baffled what's happened? Where is the thread vs page setting in the ACP? Is there a new setting? Lightbox is not showing up anywhere in Chrome or FF. Not even here on xf.com? I've tried several threads with images in them, in both chrome and FF, on my testbed and here and it's always opening in a new tab. I've dumped cache, everything. Did I miss a memo?