I've inherited a program from another developer. The software was originally written in VS 2008 and I have VS 2010. Everything appears to work okay, but when I have it open in VS 2010 on my machine, it won't always open the app when I hit the "Play" button.

If I hit the green play button I get a status in the bottom left-hand corner that says "Build started...." and then "Build Succeeded", but the program never opens - it just sits there.

This behaviour seems to occur on and off. Today it might be like that, and tomorrow and may run fine.

Any ideas?