HMDC is not yet officially supporting the use of MacOS 10.7 Lion for connecting to the RCE. Although we hope to add official support in the near future, the latest current release 3.x of the third-party NX remote desktop viewer software used in the RCE does not yet support MacOS 10.7 Lion.

The latest beta prerelease version 4.x of the NX remote desktop viewer software also does not work on Lion with the existing RCE infrastructure.  The work-around is to use OpenNX which can be downloaded from here:  http://opennx.net/. 

* If OpenNX does not work, you will be able to connect if you "ssh -X username@rce.hmdc.harvard.edu" from a Terminal window.   Then launch NX with the command "nxclient".

Please note that some users have reported problems even with OpenNX.  If you have difficulty, please do a software update on your Mac and try again.

At this time, the recommendation from HMDC support is to refrain from upgrading to MacOS 10.7 Lion until we can offer official RCE support.

Please contact HMDC support at support@help.hmdc.harvard.edu for further questions or concerns.