http://support.citrix.com/kb/entry.jspa?entryID=6203 Ok, that's the link for the PS4 readme. Taking a quick look through, does MPS3 have a SP4? to quote: MetaFrame Service Pack 4 Required on Servers running MetaFrame Presentation Server 3.0 Citrix does not recommend mixing servers running MetaFrame Presentation Server 3.0 and 4.0 in the same farm. However, if you must install MetaFrame Presentation Server 3.0 and 4.0 on servers in a single farm, make sure you update your servers running MetaFrame Presentation Server 3.0 to Service Pack 4. [#109701] Jeff Pitsch ******************************************************** This Weeks Sponsor: ThinPrint GmbH Now available: The new version .print Engine 6.2 with SSL encryption and certificate management. http://www.thinprint.com ********************************************************** Useful Thin Client Computing Links are available at: http://thin.net/links.cfm ThinWiki community - Excellent SBC Search Capabilities! http://www.thinwiki.com *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thin.net/citrixlist.cfm