I've been having some problems dowloading AICPA Sample Testlets in my PC. I am using Vista. I followed the instructions for Vista users before dowloading the sample testlets from the website, but it's giving me "Error 1722. An error occurred while performing the task. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected." Does anyone encountered the same problem? Need help. I don't have any IT resources. Thanks.