Flash Player 8 Error

I have recently come across this error every time I navigate to a site I've been working on. Note that I did not build the site merely update a few things here and there, and I'm not that knowledgeable on all things that go FLASH..

So in IE or FF this error pops up:

"FLASH PLAYER 8
Where is the Debugger or Profiler running?
o Localhost
o Other Machine - Enter IP Address
OK / CANCEL "

And it seems to kill both IE and FF after a while too ..

does anyone know what this all means?

Thanks :)