Skype Awful Resolution

[Mortos]

I recently installed xUbuntu and installed Nvidia X Server Settings for my Nvidia GeForce MX440 VGA then I configured my desktop resolution (1024 x 720). Everything was perfect until I installed skype and only it's resolution was awful, see yourself what i mean: http://img534.imageshack.us/img534/4690/screenshot1oy.png
Any Idea how can I fix it ?