Hi there, 

Im trying to install DNN 05.06.00 on my local PC for the umpteenth time and I'm having an error I've never seen before. These are the steps I have taken:

1. Downloaded and unzipped 05.06.00 Install to a suitable wwwroot folder
2. Set NETWORK SERVICE, LOCAL SERVICE, IUSR etc... permissions
3. Created a virtual directory in IIS (Windows 7)
4. Created a database using SQL Express 2005
5. Created logins/users for the database with a password
6. Edited the web.config file in the wwwroot dir to have the correct connection string for the database on my local SQL Server installation
7. navigated to localhost/mywebsite to start the install process

Now at this point I tried running the Typical install and when it got to "Installing Database Scripts" it just froze, never making any progress. 

Instead I repeated steps 1-7 and ran "Auto". There were no connection problems and it ran all the scripts with success. Finally when navigating to my local website I get the dotnetnuke logo with this message:

"Dotnetnuke error"
"An Error has occurred"
"An Error has occurred"

So I dig into the database Event Log to see the real error message and I find this:

DotNetNuke.Services.Exceptions.PageLoadException: Object reference not set to an instance of an object. 
---> System.NullReferenceException: Object reference not set to an instance of an object.     
at DotNetNuke.Services.Localization.Localization.GetPageLocale(PortalSettings portalSettings)     
at DotNetNuke.Framework.PageBase.get_PageCulture()     
at DotNetNuke.Framework.PageBase.OnInit(EventArgs e)     
at System.Web.UI.Control.InitRecursive(Control namingContainer)     
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)     
--- End of inner exception stack trace ---

Googling for this error I find nothing. I wonder if any of you know what I can do to resolve this? I've tried around 5 times to recreate the database and start the install wizard again, no luck. I have another installation on my local PC that is working just fine. I tried copying the wwwroot files over and even pointing my broken install to the working database, still get the same error. 

Arrgghh!!

No, But I did just refresh it (after leaving my computer idle for a few hours, hence IIS has unloaded the app) and lo and behold it works??!

Gosh 2 hours I was trying to get this to work earlier. Thanks for the suggestion, appreciate it :)

Any ideas why that would be the case? (App requires a restart after install?)