In the latest SVN build, the paging toolbar's next/previous buttons of the PagedGridView seems to be broken.
When clicking on next page, the grid updates with the next page's rows, but the page number remains at 1. When you click on the next page a second time, the page number advances now to page 2, and the grid remains displaying the correct page 2 rows, i.e. the page number advances for every two clicks.
Rolled back to an earlier build and it confirms that this bug was introduced sometime quite recently.
Not sure if anyone else has encountered this problem - will delve deeper into the possible causes later.