Usability of Projectplace is at some points really strange. For example if you use the back button you never know where it will take you to. Usually it skips the last ten pages shown and brings you in 99.9% to the page you don't want to go to.
Conclusion: The back button is more or less useless when viewing Projectplace.
Demand: "I want my back button back!"
And please don't bring forward the argument that in modern AJAX websites the back button can not work - or is no longer needed. Both statements has been disproved several time - you only have to search the web.