The SPSS software on the Graduate Workstations will be upgraded from version 15 to 16. The upgrade will start late Thursday and continue into Friday. Access to SPSS will not be available until the upgrade is complete. Hopefully, there won't be any problems and access will resume on Friday.
The upgrade is happening campus-wide, most likely at different times. If grad students are not able to access SPSS in the library, you may want to recommend the 6th floor lab with the caveat that the upgrade may effect access there as well.