Silly me for not including such basic information.
Browser : Windoze Internet Explorer
OS : Windoze XP Pro, SP3
The crashing doesn't always happen, yeah I know this is one of those that is tougher to pinpoint. Essentially when I click on "Reply" on a PM, occasionally it would crash the browser. But restarting and doing the exact same thing can result in no crash at all. Its pretty bizarre.
Thanks for the reply.