I solved this problem on my site by doing the following.
The download for this plug in has a file called “jquery.colorbox-min.js”
When I used the current download from the Worpress site I had the same problem as above where the “Previous” and “Next” Tags were disappearing.
If I look inside the file called “jquery.colorbox-min.js” I see that it is listed in the header as “ColorBox v1.3.19 – jQuery lightbox plugin”.
I looked at a previous installation of the same plug-in on another blog I run and the same file was listed in the header as “ColorBox v1.3.17.2 – a full featured, light-weight, customizable lightbox based on jQuery 1.3+”.
When I replaced the current file with the older code all the tags came back again.
Hope this helps
