I have several reports of this issue here as well, and can reproduce it myself.
Upgrading from 4.0.2 to 4.0.5 didn't help.
No other browsers are affected, but in larger installations where the default
platform is WinXP/IE8, it's a problem.
Server: Ubuntu 10.04 LTS (x64) / Apache 2 / mod_perl
Request Tracker 4.0.5
Client: Windows XP (x86 - 32 bit)
Internet Explorer 8.0.6001.18702IC
To reproduce:
Log into RT using Internet Explorer 8.
View any existing ticket.
Try to resize the Internet Explorer window.
Result: Window never resizes; IE hangs "forever" and has to be killed.
This seems to me that's it's going to be an Internet Explorer bug, but RT is
the only thing that seems to provoke it.
Russ McFatter