Hi
Okay, I've had this problem for quite awhile especially since I've been running Windows XP but only 1.09 onwards.  The problem I have only happens 
Online.  When you load up AH and select the online button it then takes you to the user name/password screen.  As soon as I have confirmed my password I  get an occasional lockup which requires a hard reboot.  Additionally on leaving AH after being online I again occasionally get a total lockup before it goes to the arena choice screen.
I have tried reinstalling AH but I still have the problem.  I'm using Win XP Pro with latest updates.  1 gig TBird, Abit KT7 mobo, 640Mb RAM, SB Live, latest 4-in-1 VIA drivers, GeForce 2 GTS 64mb with 30.30 Detonator Drivers (previous versions still had lockup), Cougar HOTAS with Foxy launcher.  I don't have any firewall running and I have Norton AV disabled whilst playing AH.
The image below shows what is normally running in the background.  Do any of you recognise obvious programs that could be causing such a problem?

I'd appreciate any help.  I don't have any other problems with any other programs or during normal Windows use.
Cheers