Visual Studio 2010 - Errors not underlined in aspx.vb files

I got a new computer at work with VS 2010 Premium.  I am pulling old vb6 code into a code behind file vb.net, and there are loads of errors, but the errors are not underlined.  I have confirmed the following:

1. Tools / Options / Text Editor / C# / all the editor help section items are checked
   1. Underline errors in the editor
   2. Show live semantic errors
   3. Highlight references to symbol under cursor
2. Tools / Options / Text Editor / Basic / VB Specific - all the checkboxes are checked

This is the same VS version as before.  My errors were showing before, but they are not now.

What am I missing???  How can I get the errors to show???