I can display the stacked registers (r32-127) but I can't modify any of them. Is there a method to do it ? a command like kdb[0]> rm r32 1 produces an Invalid register name error ! -- LELARGE Sebastien Poste 7474 BULL S.A - Equipe Linux IA64 mailto:sebastien.lelarge at bull.net 38000 Echirolles