Proquest will be performing system maintenance tomorrow (Saturday,
February 16, 2008) beginning  
 at 19:00 (7:00PM) for twelve (12) hours (ending at 7 AM, 17 Feb)

The following products will be unavailable during this time: 
ProQuest interface products, ProQuest Historical Newspapers (traditional
and graphical K12 interface), American Periodicals Series 
Third-party databases such as ERIC(r) PlusText 
ProQuest Archiver(tm) 
eLibrary(r), SIRS(r), and CultureGrams(tm) 
Chadwyck-Healey products housed in the US (all products with domain
names ending with chadwyck.com) 
"Digital Vault" products, including ProQuest Dissertations & Theses and
Digital Sanborn Maps 

Please share this information with your colleagues.