Ok guys, I'm pretty sure this isn't quite on topic yet -- but it is somewhat old for a PowerPC model. I have a 7200/75 which was given to me because it had a problem with its video. I cleaned the mainboard with isopropyl, and got all of the dust bunnies out, and it's worked fine since then. :) I've been trying really hard to get the thing to give me an "open firmware" prompt, but have had no success. Right now I have a "converted" vga monitor plugged in, a Mac ADB keyboard/mouse, and an IBM terminal connected to the "modem" port, set to 38400bps, 8 data, 1 stop bit, no parity. The cable has been used recently on a SPARC, so I'm pretty sure it's good. I have tried a Wyse-50 terminal, too, which I know is good. (However, I'm not completely certain that the IBM terminal works as I imagine -- I have it in ADM5 emulation mode right now. I may try to put the Wyse back on it.) I installed OS 8.1 on the disk yesterday. I got it to fit in a 50M partition (barely -- what ever happened to being able to fit MacOS on a floppy?), and I got a copy of the "boot variables" control panel. I have tried to hit command-pretzel-o-f at bootup. It works, but the screen just stays black, and I can't get anything from the terminal. I have tried with and without a null-modem adaptor, since I'm not sure which way the serial port goes. I also tried setting the input device and output device with the "boot variables" control panel. I've tried: Input: ttya Output: ttya Input: kbd Output: screen Input: kbd Output: /chaos/control Now, first, let me ask: Might the control panel not function properly if it's not in the "control panels" folder? I've just got it setting around on the drive, but it _seems_ to work. Not that I can actually see the "open firmware" stuff to make sure it's actually doing anything. Next: Any ideas what I'm doing wrong? Has anyone else ever gotten this to work? Eventually I want to install Darwin on this system, and use the terminal on the "modem port" for all console operations. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '