Thanks for posting a sample project. On my machine, the report preview is displayed almost instantly (<1sec). Before testing, I've updated project references to v2009 vol 1.6 of the Suite. I suggest that you log into the Client Center, and then update your installation to a more recent version. If this doesn't help, describe the machine configuration (OS, CPU, RAM, etc) used in your tests. Then, I'll check for a solution.