When having a big class (e.g. 1200+ students), the GBPv2 (and the original GBP) tend to require a lot of memory to build the table that displays the grades for a large number of students and/or assignments. This sometimes would require people change the /lib/setup.php and bump up the memory limitation from 64MB to 128MB (or more), which is really not a good solution. It would be good that GBPv2 and GBP can be improved on this issue. Thanks!