Juan,
It's not clear he has exactly the same problem as you had. When I looked back at your old posts and compare, I find that Derek doesn't say this was a remote access issue. If you're still having problems, there may be a completely different problem and solution; the whereami GUI changed a while ago to support some clickable html links in the window. You can turn that off AFNI_WEBBY_WAMI set to NO. It might be the X11 server which runs remotely doesn't handle something about that feature well.