I don't get the point: if you're using your browser on the server and you're accesing coppermine the way you're supposed to (over the full, publicly available url) then there shouldn't be any difference to accessing it from any other workstation. If there is a difference, your server setup and/or client setup is wrong.
You see, I keep telling people that they shouldn't use their workstation pc as a webserver - the problem you're encountering is one of the reasons why I strongly recommend people not to host their own server for budget reasons.
I don't see this situation as related to coppermine in any way, as the script does what it's supposed to do: it serves a script correctly over the internet.
GauGau
Ummm...
I have 5 computers on a Network, the slowest one is the G4/500 which the server is based on. I was typing from it to see if I could get into the user preferences directly on the server.
When Accessing it from another client I had the same issue. There is a problem with the build, and Macs then I guess... for there is no other explanation.
I have downgraded to 1.1.x and I have found that the I have no problems accessing the user information now, on any computer.
Now, as I stated before, there is something wrong with the build, I do not know what it is, but it seems from 1.1.x to 1.2.0 the build has somehow become corrupted, and not usable on my Mac network... in which it worked/works fine using 1.1.x
And I was using the public web address, and not localhost either when accessing it from the server, or this computer.
Until that bug is fixed, I will not be using 1.2.0...
BTW, I'm a network admin out of work right now, and I think I know how to set up, and function in a network condition...just thought you might want to know.
Cyberpawz