My LW Downld folder is called just that: LW' Downlds

Select your LW downld folder (whatever it's called), & go to menu & select Get info...
Other ways of doing that are to hold down both the apple & i keys or Control-click the folder & select Get info. Change it to Read & Write permissions.

Also make sure the folders it belongs to you have full permissions to write to. All the way up to your Username folder. Make sure you are saving in your username folder or else a different HDD partition. Directly in your username folder will probably be fine!

Did you repair permissions for your computer. Instructions in link I gave you. Restart the comp & hold down the shift key. Then open Disk Utility & repair permissions (& any other repairs.)