How to close open window of a catalyst control

[Lou_05]

Hello,

I have a white window of 2 inches X 3 inches is open on desktop. I want to close it. When I right click at the bottom right corner , it says ''catalyst control''.
I don't know how to close this white window. It is annoying since it covers some of my icons.

 

[amuffin]

Reboot.

 

[xcomvic]

Reboot.

True story and make sure to buy a HD 6870.

 

[Mousemonkey]

True story and make sure to buy a HD 6870.

The title and content would suggest that the OP already has an AMD card (and it's associated problems) what makes you think that they don't already have a 6870 or would want one after this little issue?