Just had a problem solved under Lniux concerning use of the Citrix thin Client. This is an application though which the Client is sent the video image of applications which are actually running on a distant server. For thus accessing my company server, there is one step additional under Linux. The standard part is to download from http://www.citrix.com/English/ss/downloads/details.asp?downloadId=3323&productId=186&c1=sot2755&c2=ost1349860 Version 10.6 English 6/28/07 1.8 mb .tar.gz Though it states ------------------------ x86 client - requires OpenMotif 2.2.x ------------------------ OpenMotif does not appear to be essential, at least not on my Ubuntu system. I made a working folder $ mkdir icaclient moved into it: $ cd icaclient unpacked the downlaoded tarball with: $ tar zxf ../en.linuxx86.tar.gz which expanded: $ ls eula.txt install.txt linuxx86/ PkgId readme.txt setupwf Setup within Ubuntu with: $ sudo ./setupwf just following the default choices presented. The additional steps not needed under Microsoft concerned installation of a security certificate from: https://www.entrust.net/downloads/binary/entrust_ssl_ca.cer a text file which I copied into a edit panel prepared with: $ sudo gedit /usr/lib/ICAClient/keystore/cacerts/entrust_ssl_ca.cer and then saved . Next move into that folder $ cd /usr/lib/ICAClient/keystore/cacerts/ and two symbolic links are set: $ sudo ln -s entrust_ssl_ca.cer entrust_ssl_ca.crt $ sudo ln -s entrust_ssl_ca.cer entrust_ssl_ca.der with result: /usr/lib/ICAClient/keystore/cacerts$ ls -l entrust* -rw-r--r-- 1 root root 1740 2008-11-21 22:21 entrust_ssl_ca.cer lrwxrwxrwx 1 root root 18 2008-11-21 22:26 entrust_ssl_ca.crt -> entrust_ssl_ca.cer lrwxrwxrwx 1 root root 18 2008-11-21 22:27 entrust_ssl_ca.der -> entrust_ssl_ca.cer Subsequently, using a Firefox browser to access my workplace, the Citrix application was automatically called, and all proceeded automagically. Generally, the workplace Server sends a Java script evoking on the distant Citrix client, on your System. Could be that other companies may require other Security Certificates (not sure) Credit goes to my company Info Tech staff, who revealed the need for the manual entrust_ssl_ca.cer installation. MarvS