How is IO on the cf card? I haven't attempted to benchmark it, but empirically it works OK. The system runs Ubuntu 10.04LTS with a custom kernel (the eBox has some non-standard hardware that's not supported by the default kernel) and simh-vax, and that's about all. I have the VAX emulation throttled to about 50% of the CPU, so I could run another emulator if I felt like it. I wanted to run TOPS-20 on it, but the idle detection in simh-KS10 for TOPS20 doesn't appear to work, so it hogs all the CPU time. What I'd like to do with LEGATO is to set up two simulated NI devices in simh. One will be my real Ethernet, and the other will be a virtual bridge to Johnny's world. There appear to be enough pieces to do that, but I haven't gotten around to trying it yet. Bob