Hi All, I've got a sad story, and I was hoping that someone might be able to rescue me from my own stupidity. I've got a couple Compaq AP400 Professional Workstations. 500 Mhz, 128MB ram, 9GB hard drive, MGA G200 graphics card, PS/2 keyboard, and USB mouse. Not a screamer, but by no means a bad machine. I installed Linux kernel 2.4.7, Mandrake 8 on one, and it's running great. The Anti-aliased text is beautiful. I found out that this machine can be made a dual-processor box! So, thinking two heads were better, I pulled the CPU and memory out of the non-used machine, and stuck them into the used machine. I started the machine with an SMP kernel, and both CPU's are recognized. The machine works well, and so I recompiled the latest kernel with all the gubbins to support USB and dual processors. I get all excited, reboot with this new kernel and start X (version 4.0.3). X appears to start just fine. I say "appears" because I get one click on anything, and then no further mouse clicks are recognized. After a minute or two, the keyboard becomes inoperative, even for a ctrl-alt-delete or a alt-Fx console switch. The machine is still alive. I can ping it...I can move the mouse, I just can't click on anything or type anything. ARGH! So, yank out the second CPU, and boot off the same kernel. Absolutely *no* change to the machine, and it works like a champ. Put back in the second CPU, and exactly the same symptoms. So, I'm sitting here with my single-CPU box with 256MB RAM, and a spare 500Mhz CPU sitting on my desk next to the computer. In the scheme of things, just how bad is that anyway, but it's *quite* frustrating to a geel like me to be so close, and not be able to use the second CPU. Any ideas? Has anyone else run into this before? -Ken