MAC USERS: David Larsen, Head of JRL Access Services, alerted the Office to the following issue with Safari:
Although most Mac users are able to view Library Course Reserves in Chalk without a problem, some users have been getting only a blank screen when they try to open PDF files. These problems only affect those using an Adobe PDF viewer within the Safari web browser. However, there is a built-in PDF viewer in Safari that is able to open the reserve files without problems.
To switch to Safari's built-in viewer, see this page:
http://www.lib.uchicago.edu/e/using/reserve/Reserves4MacUsers.html
Note that this problem does NOT affect Mac users who use Firefox or IE to view course reserves.