I recently formatted my computer and reinstalled windows xp (my computer's OEM) and updated all of the drivers. i put zone alarm back on and skype. When I dial though, the sound is choppy that I hear. Every 4 seconds or so, it seems as if the sound is being "squeezed" for a second or two.
I tried shutting off zonealarm and skype worked perfectly. I've put all the trusted and internet zone to allow for skype.exe, but it still happens with any version of skype. I'm using 9.0.083.000 Zonealarm Internet Security Suite.