Problem with versions of RadControls
A default install should have the Telerik.Web.UI referenced in the bin folder, not your install folder, and while it may seem tempting to run the upgrade wizard I don't think that's a supported scenario :)
Grab the install version 1109.40 form the _EmptyProject install folder, drop it into your bin. Make sure the project references that, and all other projects also reference that DLL. Don't do that Add Reference thing and find Telerik.Web.UI from the .NET tab...
Or you can get ballsy and use the latest Telerik.Web.UI at your own risk with Assembly binding.
<
runtime
>
<
assemblyBinding
xmlns
=
"urn:schemas-microsoft-com:asm.v1"
>
<
dependentAssembly
>
<
assemblyIdentity
name
=
"Telerik.Web.UI"
publicKeyToken
=
"121fae78165ba3d4"
/>
<
bindingRedirect
oldVersion
=
"0.0.0.0-65000.65000.65000.65000"
newVersion
=
"2011.1.315.40"
/>
</
dependentAssembly
>
<
dependentAssembly
>
<
assemblyIdentity
name
=
"Telerik.OpenAccess"
publicKeyToken
=
"7CE17EEAF1D59342"
/>
<
bindingRedirect
oldVersion
=
"0.0.0.0-65000.65000.65000.65000"
newVersion
=
"2011.1.316.10"
/>
</
dependentAssembly
>
</
assemblyBinding
>
</
runtime
>