Can't install Skype
"Cannot create Skype folder at /Users/"name"/Library/Application Support/Skype.
Make sure you have enough privileges to create that folder and launch Skype again."
Well, I'm the only user on my computer, and have installed every other program successfully. What am I supposed to do to get Skype to install the folder and finish installation?
MacBook Pro, Mac OS X (10.5.1)