account sessions ... posix_getpid

[Samuel Pigny]

Imp 2.2.2 is running well under NT4, IIS4 with PHP4.03.
There is just one problem : every user can see somebody else's account (if
the last one is not disconnected).
Is it possible to force the login screen to appear each time we go on
/imp/index.php3 ?
I use IMAP and have to note several things about my install :
- I had an error with unknown function posix_getpid(), so I deleted the line
(in session.inc)
- I used the patch where REPLACE is used instead of INSERT in ct_sql.inc.
The problem may come from those things ?