Step into Stored Proc gives "Canceled by User" in VS 2010 but works in VS 2008

I'm running a local instance of SQL 2008 standard on my workstation.

Also have VS 2008 and VS 2010 installe开发者_如何学Pythond on it.

I've (for this test) disabled the Kaspersky AV and ensure windows firewall is off.

When I debug a stored proc on my local SQL instance by right clicking and selecting "Step Into Stored Procedure" in VS 2008 it works. I get the dialog for the parameters and can step into the SP line by line.

When I try the same thing with VS 2010 against my local SQL instance, I never get the parameter dialog, but rather get "Canceled by user" in the debug output.

Can anyone point me to a VS 2010 resolution for this?

Thanks, Ken