title: Debug stepping not working after enabling then disabling "Enable .NET Framework source stepping" in VS2010
body: <p>I'm fairly new to programming and IDEs in general.  I was messing around in [Tools] [Options] [Debugging] in VS2010 and now my program is not stepping through the code as it was previously.  I checked the "Enable .NET Framework source stepping" option and then it attempted to dowload symbols.  Then I unchecked this option and now my program will not step back into the Form1 code after the form launches and a button is clicked.  Thanks for the help.</p>