[SM-USERS] invalid collation character

[slee]

Dear All, I have installed SquirrelMail verion 1.5.0 and have a problem with some mails which they would display “Warning: Invalid collation character in /var/www/html/webmail/functions/decode/us_ascii.php” Would you guys please help ? I am using the following : RedHat 7.3 Sendmail-8.11.6-27.73 Php -4.1.2-7 Apache-1.3.23-11   Thank You   Best Regards, Lee