Why does F10 (step over) in Visual Studio not work?

Question

I\'m debugging a (web) project in Visual Studio 2008. I\'m hitting a breakpoint. F10 continues to the next line, as expected, but the next F10 just stops debugging and the code

Answer 1

It might be stepping over the last executing code in the thread or somehow it's going back to the UI thread. If it's a GUI app, try doing something that invokes an event handler and see if it breaks on the next execution.