Thank you Laughing_Man for the fast respond,
The skype is simply wont run when I clicked it (I can see a blink of skype window is opening and then it's just shuts dissappeared from my screen a.k.a go back to my home screen)
But, if I clicked the home button twice, The skype icon is there like and seems running, but if I clicked on it, nothing happen
Here's what I have done so far;
1. I have tried to delete the skype and re-install it again.
2. Tried hard reset and still not working...
That's what basically happens, no error message whatsoever...
Btw, Laughing_Man are you also having jailbroken 4S and can have the skype working with No problem at all whatsoever?