Leopard not creating preference files
So, weird thing about my computer lately, it's not creating new preference files anymore! I noticed it the other day when I tried to change my desktop. I have tried deleting the old ones that are problematic as I find them, but after firing up the programs affiliated with them, it doesn't create a new one. For the desktop issue I created a new account and altered it there, then copied the preference file into my account. This is fine for the desktop, which I don't change often, but for other programs it's a serious pain. I confirmed the issue by opening up TextEdit while having the 'Preferences' window open and changing the preferences within TextEdit. The 'Date Modified' date didn't change and once I restarted TextEdit, the changes I had made were gone. The problem also is affecting the Dock, I have tried adding items to it but upon restarting the computer they're gone, and the most annoying: When deleting items from the 'Downloads' folder, if I expand the docked folder they still show up. They're not in the actual folder though, just showing that they are in a preview sort of way, you dig?
Any thoughts, you fine people?
iMac, Mac OS X (10.5.8)