I am using wordpress lightbox plus wordpress plugin: http://www.23systems.net/plugins/lightbox-plus/

And it is working well the main problem happens when seen on the internet chrome, scrollbars show up on the lightbox overlay image.

Here's the hyperlink: http://goo.gl/2Yy9L

Note: click the 3 small images at the end [ this is when lighbox plus is used]

Around the div with id cboxLoadedContent you've overflow-x and overflow-y set to auto. This content does not quite fit. You may either result in the content easily fit in its container thus staying away from the scrollbars or apply overflow: hidden that will get rid of scrollbars entirely. Obviously a few of the image might be hidden. It appears good though and so i imagine it's really a pixel hor/vert and will not be skipped.