X-no-Archive:yes Juergen Hees wrote: > > Ich have changed a 927LX with MPE/iX 4.0 to a 918RX with MPE/iX 5.5. > When I logged on the DTC 48, on the console the message "logon for op.sys > on LDEV 110 appears, and then the System hangs. > System abort 1458 From subsys 102 > Secondary Status: Info = -37 Subsys=107 > Systemhalt 7, $05B2 I remember such a problem could occur if you have enabled your terminal profile on this DTC port to do Native Language IO, i.e. NLIO = Y. You can check/disable that in NMMGR. You might want to ask your Response Center if that problem has been fixed with a recent patch, if it is indeed this problem you are having; if not it will be best to produce a memory dump for the RC to analyze the problem. HTH, Goetz.