Iowa State University

ITInformation Technology

Known Issues with Mac OS X 10.6 (Snow Leopard)

This news item expired September 16, 2009. It may contain out-of-date information.
Macintosh OS X version 10.6 (nicknamed Snow Leopard), was released on Friday, August 28. This new version is designed to protect your Mac from certain incompatible software that can quit unexpectedly or cause other issues. See for a list and more information. Iowa State IT support staff have also identified other issues and incompatibilities, listed below, that may affect Iowa State users. -- McAfee VirusScan 8.6 is not compatible with the new OS and is automatically disabled by the installer. McAfee has released a new version of anti-virus software that has been made available to ISU as part of our Enterprise agreement. ITS is testing this new version and expects to post it soon at -- Cisco AnyConnect VPN 2.2 client may need to be uninstalled and reinstalled to work correctly. -- Kerberos authentication works as normal. Using kerberos access for requires using the real name for your POP server, as is not currently supported, and no workaround has been found yet. Your POP server name can be found a number of ways, including logging into and following the links "Manage User" and then "View/Edit your email delivery". -- The Thunderbird mail client works using the same instructions as in this FAQ: -- Novell has released an advisory on the topic of connecting to Novell servers. Depending on the version of Novell server, patches will be released sometime between late September and November. -- Support for encryption in the default OS X 10.6 telnet client has been removed. This support is necessary to connect to the isua machines. ITS has compiled the open source telnet with the options to do the needed encryption. See details at As other items are identified, they are being added to the list at: