jbossportal rendering problem with tomahawk?

[den74]

hi all,
i am using JBPortal 2.4.0 with jsf and some tomahawk facility and have a strange behaviour:
first time i entered in a portlet using the tomahawk all works correctly but if select another portlet and re entere in the first one it doesn't render anithing. If i maximize the portlet it rendere correctly and backs working normally.

I saw there were similar problems in other portal but i didn't find any messages about this on JBPortal. Someone have seen it or know a workaround?
thanks

[den74]

no suggestions? no one have seen this behaviour before or know if it is a portal problem?
thx