AST RESEARCH TECHNICAL BULLETIN TB-0181 4-24-86 AST-5251/11 - IBM SYSTEM/34 Some customers have experienced problems Re-IPLing the System/34 while the AST-5251/11 emulation is running. If you are experiencing this problem, please use the following procedure: 1. Sign-off the AST-5251/11 terminal. 2. Remove the KERNEL from PC memory by CTRL-ALT-DEL until you get a DOS prompt. 3. IPL the System/34.