Breakpoints in IE's F12 Developer Tools not working

Hi

My team is working on a web application for Windows Azure. We share the code throughTortoise SVN. We are using VS 2010.

Till a month back, JavaScript debugging stopped working in VS. We tried a few workarounds but none worked. Then we had to rely onIE9's F12 Developer Tools for JavaScript debugging.

Strangely, suddenly yesterday debugging stopped working in IE on my machine, while I was changing and testing the code. I shared the code with my team. Within few hours, debugger on all our machines stopped working (one team mate was affected today though, don't know why).

Our machines' hardware configuration are entirely different (we actually have laptops of different brands). But we are all usingWindows 7 Home Premium 64-bit (except for me, I am using 32-bit). And we are all using IE9 and very frequently switch between IE7, IE8 and IE9 modes.

Now the situation is that JavaScript debugging is neither working in VS 2010 IDE nor in IE9's F12 nor in Chrome.

Any help please.