I think patchou forgot about this kind of situation when he was programming the desktop contacts.
I decided to take some screenshots:
Desktop Contact at corner of 1280x960 screen
http://img.photobucket.com/albums/v210/iamjosh/desktopcontact1.jpg
Desktop Contact missing on 1024x768 screen
http://img.photobucket.com/albums/v210/iamjosh/desktopcontact2.jpg