Version: (using KDE 4.2.0) Installed from: SuSE RPMs Dolphin shows previews of pdf and ps files, but not djvu. I tested Opensuse 11.1 (Factory repository) and Fedora 10.
Do you have the DjVuLibre utilities on command line? In particular, `ddjvu`.
No, they weren't installed. That was the problem. Thank you for your quick reply.