I am using the Auto Thickbox Plus plugin to make my photos pop up with a lightbox effect. The problem I am having is that the page header (the site title, the banner graphic and the main menu) all float on top of the pictures when they pop up. Not only that, but they are not darkened like the rest of the page.
So essentially, these elements are being 'missed' by whatever transformation Auto Thickbox applies to the page to force it into the background.
If I use the mouse wheel to scroll down while an image is displaying, the header moves up with the rest of the page so it is no longer on the image. But that is obviously not a solution!
Previously Thickbox was working fine. I'm not sure when this problem started happening - possibly it was with the upgrade to WP 3.3, but since then I have installed other plugins that might have created conflicts. For example, I have recently tried and discarded a few different gallery plugins. I am currently using 'File Gallery', but deactivating it makes no difference to the Thickbox behaviour. I have also recently run the 'Go Live' plugin which replaces all root URLs with different ones (in this case my local IP address, as I am playing with a local installation of WordPress), but did not replace URLs in the "wp_options" table. (I don't know what that means, but I thought I'd mention it in case it is relevant!)
Can anyone tell me what might be going on?
As I am running a local installation I currently have no way to share my site with the world - I hope my description above is adequate!