Hi Jeff, Run qprocess or task manager against one of your server sessions. If you don't see a process called ssonsvr.exe, then you haven't got single signon working. If that's the case then just reinstall PN with single sign-on selected. regards, Rick Ulrich Mack Volante Systems ________________________________ From: thin-bounce@xxxxxxxxxxxxx on behalf of Jeff Sent: Mon 6/02/2006 6:56 To: thin@xxxxxxxxxxxxx Subject: [THIN] Passthrough Authentication PS 4.0, Win2k3 Published App to notepad.exe Passthrough Authentication works from a client PC Same *.ICA file, same appsrv.ini Passthrough Authentication does not work from any published ica desktop or rdp desktop in the farm. It asks for credentials even when the app is published on the same server the user is logged in to and the user is an admin. Any hints? Something has changed and I'm gonna feel stupid when I find out what... ##################################################################################### This e-mail, including all attachments, may be confidential or privileged. Confidentiality or privilege is not waived or lost because this e-mail has been sent to you in error. If you are not the intended recipient any use, disclosure or copying of this e-mail is prohibited. If you have received it in error please notify the sender immediately by reply e-mail and destroy all copies of this e-mail and any attachments. All liability for direct and indirect loss arising from this e-mail and any attachments is hereby disclaimed to the extent permitted by law. #####################################################################################