I've notice that sometimes colorbox reacts stangely (http://grab.by/920H)
After trying to understand I've noticed that if the style sheet "colorbox.css" loads (http://grab.by/921e) after the script "jquery.colorbox-min.js" (http://grab.by/921c) then the problem appears.
Stange no ? Have you any idea ?
I've tested this on my personnal theme and default theme with Zenphoto 1.4.0.2
Yes I'm not really familiar with Trac but I will explore more to see if it's not something else that "breaks" Colorbox (time to time).
I thought at the begining it was my reset stylesheet but it occurs even without ... I've tested this on Safari and Chrome for mac.
By the way : I've tested this on my local server and I'm using MAMP (1.9).
I'm interresting to know if anyone has already notices this problem.
Thanks.