7.2 Issues

Hi, The 7.2 upgrade went like a dream, apart from a couple of issues... 1) Samba : My Windows boxes show the shares, but when trying to access them I get a error showing 'incorrect username and/or password'. 2) POP3 server : When trying to collect mail from my windows machines I get "The TCP/IP connection was unexpectedly terminated by the server (account='phil' pop3 server='fred' error number =0x8000ccc0f)" Any help would be much welcome. Cheers Phil