ESA == XA in this context (I'm not sure there is any difference at all in fact). XC would have spewed as soon as you tried any DAT stuff (or a SIGP to put it into zArchitecture mode too I guess).
-----Original Message----- Thanks Neale, I have it defined as MACH ESA I'll try XA. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390