Yesterday every single icon on my desktop, Task Bar, Start-Menu, and even in the extended menus have ALL changed to the iTunes logo/icon. Every. Single. One.
If I try to open something-- whether it's a document, inserted CD, Internet Explorer, etc. --iTunes opens instead.
I've right-clicked on every shortcut I have on my desktop and Task-Bar and I've viewed the Properties of each consecutively, and they all say that their File Type is iTunes (with the suffix ".lnk" at the end.)
Now, I CAN open the programs labeled as iTunes, but I have to go around the direct short-cuts and main menus; opening with a right-click is what I've had to do from the computer sub-menu of the Start Menu.
The only "different" thing that I've done recently is tweaking the Auto Play options in the Control Panel (I wanted to watch a movie, and the default program was annoying.)
But even after I reset them all back to Default, the icon problem and File Type issues have remained.
Does anyone have an idea why this is happening? (I own a new Acer laptop running on Windows 7, if that helps with anything.)
All suggestions will be much obliged.

Edit: Moved topic from Introductions to the more appropriate forum. ~ Animal