>Chris,
>This may sound silly but I've done it a few times myself.
>Make sure your running in debug and not release.

I believe I am running in debug, but I get kind of confused about VS.NET settings. When I run the app, I click on the start arrow on the toolbar, which has Debug selected next to it in the drop-down list. I am able to set break points in my code, but when I try to step into the MM.NET code, I get the error.