I realize that this has probably been discussed before, but I have looked at the docs & the list archives... BioJava 1.21 expects BioSQL running on MySQL version 4.0 or higher correct? MySQL version 3 does not support the DELETE syntax as expressed in BioSQLSequenceDB._removeSequence. Or is something else wrong with our installation? Thanks - Tim Tim Burcham diaDexus, Inc. tburcham@diadexus.com