TweakUi a box comes up missing

[Ray7001]

any help would be greatful, running on a dell laptop. how do I get rid of the box or reinstall this file.

 

[ksiemb]

any help would be greatful, running on a dell laptop. how do I get rid of the box or reinstall this file.

http://www.bing.com/search?q=tweakui&form=MOZSBR&pc=MOZI