I think this may be what you are looking for. There is a patch further down the discussion that I'm thinking about but have yet to apply (we're just getting started with Moodle, we're still creating courses so I have no grades to display, yet)
Discussion thread:
http://moodle.org/mod/forum/discuss.php?d=115567
Patch:
http://tracker.moodle.org/browse/MDL-17420
Re: How to view ALL students with ALL grades in each course?
by Paul Vasilauskis -
Number of replies: 0