Shah Ji

My windows application was working fine until yesterday. When I started working on it today still it is working fine but now it doesn't recognize any new changes I make, doesn't catch any errors and even doesn't recongnize any break points.

It seems like reading from some old cashe file or something I can't make any changes to my application now... If I make any changes it will build fine but doesn't show the new changes....I was wondering if someone had this problem and if there is any fix to it.