Hi there, To solve or get rid of the time machine error messages: Try starting IDL for the first time as super user, and then close IDL, exit from super-user shell and starting IDL as normal user, i.e: 1- open a terminal and log in as super user 2- in this new super user shell run the IDL setup to setup the environment: . /Applications/itt/idl/idl81/bin/idl_setup.bash See that I used the . operator to source the idl_setup script before the /Application/ (this is if you have a bash shell, if not you will need to run the .ksh or just idl_setup for the csh) 3- Execute IDLDE 4- exit from IDL 5- Exit from the super user shell 6- Run IDL again from a normal user shell. In other words, as an example, try something like the following: sudo -s cd /Applications/itt/idl/idl81/bin . ./idl_setup.bash ./idl Did that help?. That suggestion is the one that worked for many users. Another approach would be: Even if you don't have Time Machine turned on, try toggling it on and off. I hope this helped. Cheers, Fernando

This workaround does not work for users who don't have sudo privileges, which is basically every user in a lab/university setting. This appears to be a user-based fix rather than a machine-based fix. If an admin user logs into a machine and does the above fix, it doesn't solve the problem for other users–only for the admin. If the user has sudo privileges, this fix works, but that's not especially helpful for most users. The other workaround in this Help Article (http://www.exelisvis.com/...essages-in-IDL.aspx) also doesn't work if users need to run IDL on the command line; e.g., if they ssh into a machine to run IDL.