K, we need to find out why it's happening. XP eh?

If it's Pro/Pro64:

Open control panel, Admin tool, event viewer.

If it's Home:

Right click My Computer & select 'Manage', find the event viewer in the list.

Look in the application list in the event viewer & find where Toribash crashes. (it'll more than likely have a ! or X icon next to it) Open it & paste the reason listed on here.