Further to the existing issue (https://connect.microsoft.com/dynamicssuggestions/feedback/details/804920/crm2013-back-button-limitations), here is another example of the back button not working as you'd expect.

* Open a form with subgrids, eg account form
* Click on the table icon on a subgrid to navigate to the associated view
* Open one of the records in the associated view
* Hit back - get back to the associated view
* Hit back again - get back not to the account form, but to the account list (or whichever page you were on before opening the account form)

I understand that to get back to the account form from the associated view, you need to click on the account name at the top. This is not obvious to users, especially since, now that pop-ups have been eliminated, they are used to navigating using the back button.