Hi Colin! I stumbled across an email you sent to the Indexdata Zebralist in 2013: http://lists.indexdata.dk/pipermail/zebralist/2013-August/002576.html Were you ever able to solve those problems? Also, what version of Zebra were you running? I've noticed this problem with Zebra using 2.0.59, but I haven't been able to produce it using Zebra 2.0.47. I had the exact same configuration files, MySQL database, and Zebra indexes. Here's an example: 2.0.59: Z> f UPA-CE14060101 Sent searchRequest. Received SearchResponse. Search was a success. Number of hits: 12325, setno 1 SearchResult-1: term=UPA cnt=12325 records returned: 0 Elapsed: 0.021128 2.0.47: Z> f UPA-CE14060101 Sent searchRequest. Received SearchResponse. Search was a success. Number of hits: 1, setno 3 SearchResult-1: term=UPA cnt=12325, term=CE14060101 cnt=1 records returned: 0 Elapsed: 0.015657 -- It looks like the packages in Debian 7 and Ubuntu 14.04 are stuck back at Zebra 2.0.44, which is from 2010. However, Indexdata apparently has newer deb packages for both Debian and Ubuntu: http://ftp.indexdata.dk/pub/zebra/. In fact, the server I'm having problems with appears to have installed Zebra 2.0.59 using the following "/etc/apt/sources.list.d/indexdata.list" pointing to "deb http://ftp.indexdata.dk/debian squeeze main". I'm guessing that you were using a Zebra version that was higher than 2.0.47? Possibly a deb package installed from Indexdata's repos? I know Tomas has had good luck contacting Indexdata folk. maybe he has some ideas about how to find a solution to this issue? David Cook Systems Librarian Prosentient Systems 72/330 Wattle St, Ultimo, NSW 2007