gzinflate(): data error in bootstrap 4.7.1

Warning: gzinflate(): data error in /includes/bootstrap.inc on line 529

Warning: Cannot modify header information - headers already sent by
(output started at /includes/bootstrap.inc:529) in
/includes/bootstrap.inc on line 540

I posted a month ago on another thread that I did not have this problem but I was contacted by a user today that told me I do.
No one else has complained. I cannot see the error in the older IE browsers I have. Works fine for me in firefox, konqueror, mozilla and safari.
Is this a wierd IE issue?--->Is this a mysql blob issue?

My server:
Server OS: FreeBSD 4.7-RELEASE-p28 Database: MySQL 4.1.16
HTTP Server: Apache/1.3.33 (Unix) PHP/4.4.2 mod_perl/1.29 mod_gzip/1.3.19.2a
PHP Version: 4.4.2 (Zend: 1.3.0)
zlib.output_compression - On
Drupal Page Cache - enabled

Would like to keep cache and gzip on.