SquirrelMail - users can not log in all of a sudden

[jamesm]

We have 2 ISPConfig3 servers running ... both have been maintained identically so the patches, plugins, everything should be the same ... we've been using squirrelmail for some time and it has always worked ... now one of the servers (not both) is getting an error when users try to log in:

ERROR
You must be logged in to access this page.

Trying to troubleshoot this and we can seem to find any logs or anything that relate to why this is happening. One the SquirrelMail page it has this error message and possible solutions at http://squirrelmail.org/wiki/LoginError ... but php seems fine and cookies don't appear to be the issue.

Just wondering if anyone else has had this problem and resolved it yet?

thanks

[jamesm]

If anyone has this problem ... the solution for me was in the php.ini file.

Session Auto Start needs to be set to 0 ...

; session.auto_start = 1
session.auto_start = 0

... we had installed some other php frontends for a client and this was changed in the process ... didn't relate the two things until just now ...