Op dinsdag 27-09-2011 om 08:37 uur [tijdzone +0200], schreef Lars J. Helbo:

Probably it is something concerning the setup of Zebra, as the search function works fine, if I turn Zebra off.

The first thing I always look at when this happens is the zebrasrv process. In particular, is it running? (Annoyingly) Koha doesn't give you any warning when it's not, it just says it can't find anything. -- Robin Sheat Catalyst IT Ltd. ✆ +64 4 803 2204 GPG: 5957 6D23 8B16 EFAB FEF8 7175 14D3 6485 A99C EB6D