I had trouble installing Calendar Server as a system service using launchd, and I thought I'd share my solution with the list in case there are others out there like me that know just enough to be dangerous. This assumes that you have Calendar Server installed and can launch it manually using "./run -d". As suggested on the list in November, I downloaded Lingon (http://lingon.sourceforge.net ) to simplify the process of creating a launchd service. In Lingon, create a new service and set it as a User Daemon. Enter the following information: Name: com.apple.calendarserver What: /Library/CalendarServer/run -d (if you have CalendarServer installed somewhere else, adjust this appropriately) When: Select "Run it when it is loaded by the system (at startup or login)". If you save this and restart your computer... it won't work! The console reports an "unbound variable" error and the service doesn't start. The cause of this, as near as I can tell, is due to what looks like debugging code in the "run" script. Open CalendarServer/run in a text editor (after making a backup!) and search for the following, toward the end of the script: # # Twisted # case "${USER}" in wsanchez) proto="svn+ssh"; ;; *) proto="svn"; ;; esac; svn_uri="${proto}://svn.twistedmatrix.com/svn/Twisted/branches/dav- acl-1608-4"; svn_get "Twisted" "${twisted}" "${svn_uri}" 19773; The problem (I think) is that USER is not defined when the script is run at startup, but the case statement is in there for debugging purposes; we just need proto set to "svn". So you can delete (or comment out) all but the three lines of the above code: proto="svn"; svn_uri="${proto}://svn.twistedmatrix.com/svn/Twisted/branches/dav- acl-1608-4"; svn_get "Twisted" "${twisted}" "${svn_uri}" 19773; There is one more block of code that checks the USER variable and thus needs to be changed: case "${USER}" in cyrusdaboo) base="svn+ssh://cdaboo@svn.osafoundation.org/svn"; ;; *) base="http://svn.osafoundation.org"; ;; esac; svn_uri="${base}/vobject/branches/users/cdaboo/vavailability-173"; svn_get "vObject" "${vobject}" "${svn_uri}" 178; put_setuptools "${vobject}"; In this case, we need only to initialize the "base" variable, so it can be replaced with this: base="http://svn.osafoundation.org"; svn_uri="${base}/vobject/branches/users/cdaboo/vavailability-173"; svn_get "vObject" "${vobject}" "${svn_uri}" 178; put_setuptools "${vobject}"; Now, maybe this messes something up that I don't understand, but making these changes to the script and restarting seems to do the trick. I hope this helps someone else out as well. ************************************************** Toby W. Rush - toby.rush@unco.edu Instructor of Music Theory PVA Webmaster & Technical Operations Manager University of Northern Colorado "Omnia voluntaria est." **************************************************