Hi ProQuest has just announced that the will be performing system maintenance for four hours on Saturday, February 4, 7pm to 11pm The following products will be unavailable during this time: ProQuest®, including ProQuest interface products, ProQuest Historical Newspapers (traditional and graphical K12 interface), American Periodicals Series, "Digital Vault" products, including the Gerritsen Collection, ProQuest Dissertations and Theses, Policy File, DNSA, and Digital Sanborn Maps Please share this information with your colleagues. Thanks Sherry Sherry Willhite Information Resources Analyst Digital Library Services California Digital Library