Error while starting iView

While trying to start an iView which hosts a webdynpro application, I am getting an error. This is the new BS 5.8 installation. The error message says "An error occured while starting the iView. Application http:// : /webdynpro/dispathcher/ sap.com/ Application> will run with a wrong client window ID! Do not continue; please report this problem to your administrator."

Can someone help with this please?

Thanks,

Satyajit.