To disable gadgets you would have to go into Control Panel \ Programs and Features and pick Turn Windows Features On & Off
BUT I would first just recommend using the instructions from Microsoft in my post above just to see what gadgets are running and then list them here so I can check to see if it's possible it my be doing what you see.
You might also install SIW from our
Freeware DB and go to: File ... Create Report ... HTML. Then zip the result and use the Post Reply button (rather than the quick reply box) and attach the file using the paperclip icon. With that file it's possible to look for installed apps that may be causing what you are seeing.