So in my previous post I wrote that i finally fixed it.
That was, fixed the paths is the sql database. I wasn't there yet...
When I looked in my movies in library mode I was missing my movie covers.
so I looked at the library backup I made before and found out there was a xml file called
moviedb.xml wich contains the file path linked to the images.
How To make a libray backup in XBMC: Go to Settings>Videos>Export Video Library
Choose a destination. In that destenation the moviedb.xml will be created along with some folders containing the images.
I changed the backed-up moviesdb.xml file using
Notepad++ doing a FIND REPLACE (Ctrl+H)
And then I imported the total library through the XBMC interface(Settings>Videos>Import Video Library).
Now all my file path's were changed and all covers matched again.
This moviedb.xml I found in my export will probably be located somewere else on the system. Thing is I don't know were. And this worked for me.
greetz
one happy xbmc-enthousiast