Open
Respondus and click on the "i" located on the
upper left hand side corner. On the new window that pops
up click on "check for updates." Click on "Get Updates"
and install.
This procedure will solve errors such
as a message stating: "Cannot verify LockDown Browser."
MAC OS X 10.6.8: Apple made a
new Java version November 8, 2011, Version 1.6.0_29. It
crashes the learning system. It warns you when trying to
launch Lockdown browser.