After a clean install of SilverStripe 2.3.1 into a testbed WAMP environment the first time login works fine. So long as I keep that browser window open I can log in and out. Open any other browser window and try to login and it just keeps returning to the login screen as though I got the password wrong. I have reinstalled several times and keep getting this behaviour. Any ideas?
Sorry, pushed the submit button twice when posting the last entry.