Reminder: This is a CIS Maintenance Weekend

I should also add, as per the Argonne Extra that went out on Wednesday noted:

> Argonne’s quarterly IT maintenance weekend is scheduled for Friday, Jan. 18, beginning at 7 p.m. and completing by Sunday, Jan. 20, 2013, at 7 p.m.
>> It is expected that many business systems will be unavailable throughout the weekend.
>> Note that Zimbra e-mail and calendaring services will be down all day Saturday, Jan. 19. The majority of Zimbra users are in the following divisions: APS, ALCF, CELS, NST (CNM), MCS and MSD. There are however, a small number of users spread across other divisions.
>> If you are unsure whether you will be affected, contact your division systems administrator.
>> Computing and Information Systems (CIS) conducts four planned maintenance weekends each year to handle major system upgrades. Maintenance weekends are scheduled on a fiscal year calendar in advance of the year.