Tweak - band - was created in 2006.

first, define what you mean by tweak

I believe the tweak your looking for is called 'Gridlock' but bear in mind you have to pay for the tweak :)

-Hope it helps!

Tweak can mean being high, to do crack or cocaine, and many other things.

Using the Group Policy Editor

· Click Start, Run and type gpedit.msc and press ENTER

· Go to the following location:

User Configuration Administrative Templates System

· Double-click Disable registry editing tools and set it to Disable

· Minimize the Group Policy Editor for now, and try to launch the Tweak UI, you should be able to launch it now

· Go back to the Group Policy Editor, and set the "Disable registry editing tools" back to Not Configured

Source: http://geekvalley.blogspot.com/2008/06/tweak-ui-has-been-disabled-by-your.html