Hi, I am running OpenSSH version 5.3p1 on a Solaris 10 box. I run X client "X1', say, with X11 Forwarding as user U1. Then I click on a button in X1 which kicks off an ssh to a different user U2 and runs a different X client X2. X client X2 does NOT startup. The error message is as follows: debug2: X11 auth data does not match fake data. X11 connection rejected because of wrong authentication. debug2: X11 rejected 4 i0/o0 Ideas? Any help would be appreciated. Thanks, Jon