OK, God forbid anyone should post here a PROPER solution to help others with the new chrome issue so after fiddling for 2 days I bring you here the proper working fully tested solution *no fiddling required*.

Get this file ZEN_LIGHTBOX_FIX.zip

Upload to the following locations and replace existing files:

Replace slimbox.php in your
.../includes/classes/zen_lightbox
With the new slimbox.php file included in my ZIP

Replace stylesheet_zen_lightbox.css in your
.../includes/templates/YOUR_TEMPLATE/css
with the new stylesheet_zen_lightbox.css file included in my ZIP

copy the GIFS (photo) files to your
.../includes/templates/YOUR_TEMPLATE/images

THATS IT!!!

DONT TOUCH your JScript folder files!! - leave that for the wisecracks...

The only reason that this thread isnt FLOODED with people having this problem is simply because most haven't updated their chrome version.

Even I by total chance had to uninstall chrome and reinstall a new version to resolve unrelated issues and then my woes started with lightbox.

GOOD LUCK!!