V2.5 (2006-07-14) COOSYS epoch and system are not set to the proper values in ASCII_VOTABLE catalogs. Unexpected crashes are experienced when working with extremely large images (10+Gpixels). This was not the case with earlier versions (ca. 1999). V2.3 (2002-12-17) ASSOC options do not work properly with MEF images (this is not really a bug). Emmanuel Bertin