We have been using onCourse for a few years now without many problems, but recently I have been told that onCourse freezes and crashes when trying to view the by month Timetable. I have looked into the issue and noticed that while its frozen its loading, but if you try and do anything while its frozen onCourse crashes. It takes about 4 to 5 minutes to load on one of our computers. others not long at all.
I'm about to update Java on all the computers to see if that helps.