Can anybody tell me why this doesn't work all the time? I get it to work sometimes but the rest of the times it crashes my calc. It is supposed to create a prog called Jimmy .ORG 9327h LD HL, ProgName LD BC, 0000H LD DE, 8039h LDIR LD HL, 04000h CALL 448Ah RET ProgName: .db "AJIMMY",0 .end END _________________________________________________________ DO YOU YAHOO!? Get your free @yahoo.com address at http://mail.yahoo.com