Reporting a (small?) security issue:
Open two accounts in RC in two different browser tabs (IE7 here). You'll find RC gets confused and assumes the most recently opened account for both.
Say, open user Ua in tab Ta, then open user Ub in tab Tb. Admiter Ub's inbox, then return to Ta. Obvisously, Ua's inbox is still on display, but when you refresh the inbox (or do other things such as acessing Personal Preferences), tab Ta now shows user Ub's data.
I am not sure how serious this security breach is, given that I had permission to open both accounts in the first place, but it just doesn't seem right.