I'm trying to download CESM 1.2.2 following the instructions on the CESM.ucar.edu webpage (http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/usersguide/x290.html). When I type the following code: svn co https://svn-ccsm-models.cgd.ucar.edu/cesm1/release_tags/cesm1_2_2 cesm1_2_2 , I get stuck in an endless loop of entering "guest user" and my password. Each time I do this, I get a slightly different error message (as shown in the attached image). Any help is much appreciated!