Clover & JDK1.4 success anybody?

I can't make Clover work with IDEA 691.
In their FAQ, they report this as an Ant Bug, but the solution suggested
doesn't work.

details :
-

error message:
"java.lang.NoClassDefFoundError:
com/cortexeb/tools/clover/reporters/html/HtmlReporter"
suggested solution that doesn't work:
(fork="true")

faq : http://www.thecortex.net/clover/FAQ.html
ant bug: http://nagoya.apache.org/bugzilla/show_bug.cgi?id=3158

Alain Ravet