I am using Guide on my observatory computer to locate comet Kohoutek 75P. The
location is given on this computer, but I have just installed Guide on my main
computer (not normally used at the same time but I am currently checking layouts
etc). I now find that this comet is way out on this computer despite identical
settings a.f.a.i.k. No wonder my comets are not shown in the images! What
might be going on here?

LAwrence Harris