Yes, and that is because there is not anything like official evaluation copy of BO XI.
You could ask you BO vendor for such copy.
As you can read here: The only authorized place to download evaluation software is from the Business Objects web site. So please do not ask here in BOB for anything that is not authorized.
And of course, if you have a valid BO account then you can download BO software from the link that looksmee mentioned above.
Marek Chladny 
(BOB member since 2003-11-27)