[TYPO3-english] jQuery Colorbox ver 1.5.5 corrupted a nice site

[Peder Høy Kristensen]

Hi,

I am building a new site with TYPO3 ver 6.1.1. Everything worked well, until I tried to install jQuery Colorbox. Unfortunately I chose the wrong version. There are two versions: ver 1.5.5. stable from March 11, 2013 and ver 0.0.1 alpha from August 21, 2011. Ver 0.0.1 works just fine on other sites. Now I tried to install the latest version, but it resulted in a blank screen in both frontend and backend - I can't even log on the backend. I deleted all files in typo3temp, but it did not get any better. jQuery Colorbox left nothing at all in typo3conf/ext.
How do I get my site back – i.e. get it made visible.

PS: I tried to use jQuery Colorbox because the very nice pmkshadowbox does not work with TYPO3 ver 6.x

Venlig hilsen / Best Regards
Peder Høy Kristensen