Red5 and spark on linux and mac

hi,

i installed the beta red5plugin on an xen amd64 debian lenny, with openfire 3.6.4. everything works fine. then i installed the red5lpugin from the beta section. also with that i had no problems. but when i want’t to use the red5plugin for spark on linux and mac, nothing happens. i can see the tab i can click on “start” video chat or whatever but nothing happens on ubuntu and on mac os x.

any tips for that?

thanks

a lot

kamanita