I have just started to learn DNN. I just purchased the book "Professional dotnetnuke 4" and i am really excited about the new framework. It appears to have most everything you would want in a framework to begin a asp.net project, but I have already run in to a couple problems. The instructions for installing dotnetnuke 4 couldnt be any simpler. Im not using any advanced configured options such as setting up iis or using another sql database other than express. Im just using the file system and sql server express. So all i have to do is build the project and it should just work. well it took 3 projects to get a good build. i did the same thing each time. on the third time the build worked fine. Then i started getting an error after logging in to the admin account. the area where the control panel should load contains an error "object not set to an instance of an object" this makes me worry that the platform although seems to have a great deal of features may still need some time to mature before it is a good canidate for a buisness application. please let me know what you think about what problems im running in to becuase our company would really benefit from this platform if there is an easy solution. i just posted a thread about this before this one, but i just wanted to add more. Thank you!