Problem remote debugging webapp on localhost

I am having a problem debugging any kind of webapp from my IDEA 5.0 on my local machine.

When I start the debugger in IDEA it connects fine to Resin and a connection is established (according to ActivePorts). But as soon as I add a breakpoint anywhere in the code, the debugger disconnects immediately. The IDEA log then give a

"com.sun.jdi.VMDisconnectedException: connection is closed"

exception and Resin says

"ERROR: transport error 202: recv error: Software caused connection abort ["transport.c",L41]
Listening for transport dt_socket at address: 11222"


I have a very simple webapp running on Resin 3.0.14 and I have set it up in debug mode by copying the remote debug settings from my IDEA:

httpd -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=11222

Both Resin and IDEA are using JDK 1.5.0_01. I do not have any plugins installed in my IDEA and there is no reference or control of Resin from within IDEA, it is running completely on the side of IDEA.

I have no problems remote debugging webapps running on other machines and people can remote debug to my machine. The problem only arises when I try to debug on my own machine.

The problem is there even if I shut down my wireless network card and my firewall. I have tried debugging using "localhost", "127.0.0.1" and my ip-address but without any change.

To me, it seems like there is some software or Windows (XP) setting that interfereces with the Resin/IDEA combination - I just can't think of what it could be.

I have been in contact with JetBrains support but they have unfortunately not been able to solve the problem so I was wondering if someone on the board has seen this behaviour before?

Regards,
Johan