How are you looking for this folder? If you're looking for it via the GUI, then (assuming you're using GNOME's Nautilus), you'll need to press Ctrl-H. If you're using the command line, then "ls -A" should list all files/folders in a directory.
Files/folders that start with a dot are marked as "hidden" in the file system, and can only be shown by using either of the methods above.
Last edited by MrCode; 11-01-2009 at 10:39 PM.