output_buffering = On in the php.ini file fixed the problem. Regards, Jerry <quote who="Jerry Mersel"> > > This is my http log: > > PHP Warning: Cannot modify header information - headers already sent by > (output started at > /usr/share/squirrelmail-1.4.17/functions/page_header.php:31) in > /usr/share/squirrelmail-1.4.17/src/addressbook.php on line 286, referer: > https://blade-2.weizmann.ac.il/webmail/src/addressbook.php > > <quote who="Jerry Mersel"> >> >> >> >> >> Forgot to add : >> >> >> I am using version 1.4.17 of squirrelmail >> on Red Hat Enterprise Linux AS release 4 (Nahant Update 6). >> apache 2.0.53 >> php 4.3.9 >> >> >> ---------------------------- Original Message >> ---------------------------- >> Subject: "compose to selected" in addresses selection >> From: "Jerry Mersel" <mlmersel@xxxxxxxxxxxxxx> >> Date: Sun, July 5, 2009 10:17 am >> To: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx >> -------------------------------------------------------------------------- >> >> >> >> >> Hi: >> >> >> When I choose users in the address book (via a checkbox) and then >> click on the "compose message to" button. >> Another window is open but it opens to a blank page instead of the >> compose window. >> >> Any clues? >> >> >> Thank you, >> Jerry >> >> >> ------------------------------------------------------------------------------ >> ----- >> squirrelmail-users mailing list >> Posting guidelines: http://squirrelmail.org/postingguidelines >> List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx >> List archives: http://news.gmane.org/gmane.mail.squirrelmail.user >> List info (subscribe/unsubscribe/change options): >> https://lists.sourceforge.net/lists/listinfo/squirrelmail-users >> > > > ------------------------------------------------------------------------------ > ----- > squirrelmail-users mailing list > Posting guidelines: http://squirrelmail.org/postingguidelines > List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx > List archives: http://news.gmane.org/gmane.mail.squirrelmail.user > List info (subscribe/unsubscribe/change options): > https://lists.sourceforge.net/lists/listinfo/squirrelmail-users > ------------------------------------------------------------------------------ ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users