aspectmanager not found error using web-console

SourceForge Submitter: p_nevilleuk .
Get the attached stack trace shown in the console
when using the web-console (ie.
http://localhost:8080/web-console). This only occurs
when the applet is enabled and is display when the
applet shows (inited).

It works for me on 3.2.5, but not 4.0.0

Using:
jboss 4.0.0
windows xp 5.1, x86
jre 1.4.2_01
ie 6.0.2800.1106.xpsp2.030422-1633