Most likely there's a JavaScript error thrown, check to see if there is a JS error and if so post it please :)

Hi Slace, looks like your on the right track. I'm getting "Jquery not defined". Which is very clear. But i can't see where the jquery file is referenced in umbraco/umbraco.aspx. There are a few mentions on this issue on the forum but i can't quite put my finger on how to resolve this. My instinct is it's iis6 Win 2003 related. 

Can you use something like Charles, Fiddler or the Firebug net panel to inspect all the requests. There's most likely a server error happening when the JavaScript file(s) are being requested.

The stack trace may point you to the error, otherwise post it here

Here is the error log

#############

Application information: 

    Application domain: /LM/W3SVC/1937438684/ROOT-1-129295290277434574 

    Trust level: Full 

    Application Virtual Path: / 

    Application Path: E:\Data Store\Sites\xxxxxxxxxxxxxx\website\ 

    Machine name: xxxx

Process information: 

    Process ID: 772 

    Process name: w3wp.exe 

    Account name: NT AUTHORITY\NETWORK SERVICE 

Exception information: 

    Exception type: HttpException 

    Exception message: Invalid viewstate.

   at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType)

   at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString)

   at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader)

   at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context)

   at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context)

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Request information: 

    Request URL: http://xxxx.com/ScriptResource.axd?d=eeTga--Xp9BddWIXgUXyW9cpWLDz0R6PXeq8DZRYEcohI1DBYhFWDPubdUl46D-G ;

    Request path: /ScriptResource.axd 

    User host address: xxxxxxx 

    User:  

    Is authenticated: False 

    Authentication Type:  

    Thread account name: NT AUTHORITY\NETWORK SERVICE 

Thread information: 

    Thread ID: 6 

    Thread account name: NT AUTHORITY\NETWORK SERVICE 

    Is impersonating: False 

    Stack trace:    at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType)

   at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString)

   at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader)

   at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context)

   at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context)

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

update: I deleted the files from 

/website/App_Data/TEMP/ClientDependency

this seemed to do the trick

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