I double checked with my hosting provider and they said that 3.5 sp1 is installed and the website is configured to run on 3.5.

Because the problem is apparently related to a missdirected URl for a resource, and there are issues with the current release of the social modules new URL rewriting scheme maybe it's just a bug due to my unique configuration? I remember adding some URL rewrite code last year in support of a module (can't remember exactly why now, but I remember doing it) maybe that is interfering with it? Here is the code from my web config file.

<urlrewritingnet rewriteOnlyVirtualUrls="true" contextItemsPrefix="QueryString" defaultPage="default.aspx" defaultProvider="RegEx" xmlns="http://www.urlrewriting.net/schemas/c...">
<rewrites>
<add name="KickIt" virtualUrl="^http\://sudisposal.com/" rewriteUrlParameter="ExcludeFromClientQueryString" destinationUrl="http://www.sudisposal.com/" redirect="Domain" redirectMode="Permanent" ignoreCase="true" />
</rewrites>
</urlrewritingnet>

 Ah ha that did the trick. I removed the UrlRewritingNet.UrlRewriter.dll from the bin folder and commented out the relevent lines from the webconfig file and now the social modules are working properly.

Thank you for your help in figuring this out!

Mark

<!--3rd UrlRewritingNet.UrlRewrite entry -->

<!--add name="UrlRewriteModule" type="UrlRewritingNet.Web.UrlRewriteModule, UrlRewritingNet.UrlRewriter" / -->

<!--add name="Authentication" type="DotNetNuke.HttpModules.AuthenticationModule, DotNetNuke.HttpModules.Authentication" / -->