I just installed Slimbox (never had lightbox installed, so there's no conflict issues). It seems to work properly in IE, but in firefox, where the image and 'click to englarge' should be, is a pair of the same image, one atop each other, and larger than normal. 'click to englarge' is not printed. Instead, the alt text is "click to enlarge", while the status bar text is "double click to enlarge" - you must double click to get a popup window.
As a test, I loaded the readme for this addon in firefox; in the 'background' section, the image there, which is linked to as "famouse effect" in IE, is shown as an image in the document, and expands on mousover, but does require double click to open a new window (no lightbox); The expands/shrinks work properly.
This sounds like a browser issue, but if it is, I'd at least like the images to look properly for users in similar situations (not oversized double images as currently appears)
I can't really offer a link to demo as the store is a developmental version of a live store. If developer of the plugin needs to see the page, I suppose I could PM a link.
Suggestions?