This is a A4000T with 3.1.4 ROMs. I checked my setup some more...
I re-installed MUI 3.9 and then I didn't realize that I didn't have my network up and when I click on "Continue Otherwise", it crashes with 8000 0004. With network up, no more crash. However, would be nice not to have that stack requester come up anymore but looks like that would need to be fixed in AmIRC. Red mouse arrow is pointing to what I think is the task with 8192 stack size.