Thanks for the reply. In our case we were running SAS Enterprise Miner via Citrix virtualization. The licensing is fine. But we were changing the way students save files and in so doing changed an attribute that ended up clearing the home folder variable. On the surface it seemed like it should still work be able to work, but... restoring the variable set everything right. Now to figure out why and the procedure needed to correct the issue when that drive space is altered in the future. Alas that is for someone else to figure out, I was just triaging the intial problem. Thanks again.
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