I have both installed 5.0.0 to a new development site and upgraded a development site to 5.0.0.

I'm having a problem that looks like a 5.0.0 bug on the installed site and I'm not having the problem on the upgraded site.

The postback links on the Host Settings page do nothing when clicked (see below for partial list). Are these links working for anybody on a new 5.0.0 install? If nobody else reports that the links are working for them, I'll submit it as an error. The postback links work on other pages and they work on the Host Settings page on the updated site, it's just the Host Settings page on the new install site.

Friendly URLs, Add New Rule
SMTP Server and port, Test
Performance Setting, clear cache
Compression Settings, update

Thanks...

1) Do you have an error in the DNN admin/event viewer you can show us?

2) Is this your issue?
http://support.dotnetnuke.com/issue/ViewIssue.aspx?id=9026&PROJID=2

3) Which friendly URL provider are you using (default with DNN)?

4) What happens if you disable friendlyURL settings that you put in.

5) What happens if you restart IIS/or your website, or force an application recycle by slightly altering web.config slightly.

Thanks...

I have installed 5.0 to a new site three times. The first time I got the below error and found that I could correct it by adding a reference to the website for System.Data.Linq. After doing that, I do not get any errors. I believe this is a missing reference and should also be reported as a 5.0.0 bug.

AssemblyVersion: 05.00.00
PortalID: 0
PortalName: My Website
UserID: 1
UserName: host
ActiveTabID: 16
ActiveTabName: Host Settings
RawURL: /lpv_cc_02/tabid/16/portalid/0/Default.aspx
AbsoluteURL: /LPV_CC_02/Default.aspx
AbsoluteURLReferrer: http://localhost/lpv_cc_02/tabid/16/ctl/Login/portalid/0/Default.aspx?returnurl=%2flpv_cc_02%2ftabid%2f16%2fportalid%2f0%2fDefault.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; MS Internet Explorer; .NET CLR 1.0.3705; Media Center PC 2.8; InfoPath.1; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 971ab1a9-f12b-4473-9f2c-0f5ece08be8d
InnerException: Could not load type 'System.Data.Linq.DataContext'.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.Compilation.BuildManager.GetType
StackTrace:
Message: System.Web.HttpException: Could not load type 'System.Data.Linq.DataContext'. at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) at DotNetNuke.Framework.Reflection.CreateType(String TypeName, String CacheKey, Boolean UseCache, Boolean IgnoreErrors)
Source:

The 2nd and 3rd times I installed 5.0 (which included adding the missing reference), the very first thing I did was check the Host Settings page and found that it did not work. I did not get any errors in the event log, I did not change the default friendly URL provider, and I did not add any friendly URL's. Restarting IIS and recycling the application does not make any difference.

Have you tried to recreate this problem by examining an install of 5.0.0 to a new site to see if the Host Settings page works? I have no confirmation whether or not this problem is occurring for other people and I have no other computers that I can test on at this time.