skype: I downloaded the skype.exe in my computer,

and installed it, and the icon of Skype is on the desktop of my computer.

But when I double click the icon of Skype at the desktop, after 3-5 seconds it opens, the window of logging on the skytype automatically closes. I even cannot input all the information including username, password before it closes.

What is the possible reason the window for log-on closed ? my system is Window XP

Thanks