Make sure you have correct version on Openstealth, I recommend using Google Chrome browser for it.
Also, Make Sure of the following:
Proxy,, 127.0.0.1 Port:3128
Opestealth is updated to correct version (
[Only registered and activated users can see links. Click Here To Register...])
If Opeantealth still does not work, check antivirus & unblock openstealth,
If not then ask Profibot support.