I am looking for any advice that can help to identify problem, I have an application use extjs 2.0.2, and it use ext-all-debug.js with tomcat, apache 2.x web server, the ext-all-debug.js is in tomcat.

The problem is for two of my user only, it seems they only get 640kb size of ext-all-debug.js, so that cause extjs not able to run, (even after clean cache, restart pc, browser)

They are using IE6 same as other users in xp-sp2. And the browser is able to accept gzip by default, so the apache web server also configured to do gzip for *.js file.

My problem is this only happen to these two users, other users are just working fine.

Any idea what happen and what's the best way to identify the cause?