I have the same issue after installing rollup 5. Have you found a solution to this issue?
The errors in the logs show the following error message:
<CrmScriptErrorReport>
<ReportVersion>1.0</ReportVersion>
<ScriptErrorDetails>
<Message>Object doesn't support property or method 'shouldUseOrgName'</Message>
<Line>0</Line>
<URL>/main.aspx</URL>
<PageURL>/main.aspx</PageURL>
<Function>(eventCode,parameters)</Function>
<CallStack>
<Function>(eventCode,parameters)</Function>
<Function>($p0,$p1)</Function>
<Function>function(){return b.apply(a,arguments)}</Function>
<Function>(c,d)</Function>
<Function>function(){var b=this.get_events().getHandler("load"),a=new Sys.ApplicationLoadEventArgs(Array.clone(this._createdComponents),!!this._loaded);this._loaded=true;if(b)b(this,a);if(window.pageLoad)window.pageLoad(this,a);this._createdComponents=[]}</Function>
<Function>function(){if(!this.get_isInitialized()&&!this._disposing){Sys._Application.callBaseMethod(this,"initialize");this._raiseInit();if(this.get_stateString){if(Sys.WebForms&&Sys.WebForms.PageRequestManager){this._beginRequestHandler=Function.createDelegate(this,this._onPageRequestManagerBeginRequest);Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(this._beginRequestHandler);this._endRequestHandler=Function.createDelegate(this,this._onPageRequestManagerEndRequest);Sys.WebForms.PageRequestManager.getInstance().add_endRequest(this._endRequestHandler)}var a=this.get_stateString();if(a!==this._currentEntry)this._navigate(a);else this._ensureHistory()}this.raiseLoad()}}</Function>
<Function>b()</Function>
<Function>function(){Sys.UI.DomEvent.removeHandler(window,"load",c);b()}</Function>
<Function>function(){var b={};try{b=Sys.UI.DomElement._getWindow(a).event}catch(c){}return e.call(a,new Sys.UI.DomEvent(b))}</Function>
</CallStack>
</ScriptErrorDetails>
<ClientInformation>
<BrowserUserAgent>Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.3; MS-RTC LM 8)</BrowserUserAgent>
<BrowserLanguage>en-us</BrowserLanguage>
<SystemLanguage>en-us</SystemLanguage>
<UserLanguage>en-us</UserLanguage>
<ScreenResolution>1680x1050</ScreenResolution>
<ClientName>Web</ClientName>
<ClientTime>2011-12-12T08:24:33</ClientTime>
</ClientInformation>
<ServerInformation>
<OrgLanguage>1033</OrgLanguage>
<OrgCulture>1033</OrgCulture>
<UserLanguage>1033</UserLanguage>
<UserCulture>1033</UserCulture>
<OrgID>{C2557DD5-4ACF-E011-B0B7-00155D025209}</OrgID>
<UserID>{C010DB60-0500-E111-B311-00155D025209}</UserID>
<CRMVersion>5.0.9688.1533</CRMVersion>
<BuildFlavor>RELEASE</BuildFlavor>
</ServerInformation>
</CrmScriptErrorReport>
