I've been telling people for years not to press the back button, rather to click on the course short name in the breadcrumb trail.
Unfortunately in Moodle 2.0, going to the course files area actually bounces you out of the course and into the file browser. There's no (easy) way back into the course. Worse, clicking on the course short name just takes you further up the file repository to who-knows-where (don't get me started on how confusing the new file repository is. What do all those folders do again?).
Or, is it just me
Anyway, if anybody cares - MDL-22194