path: local computer policy\user configuration\windows settings\internet explorer maintenance\browser user interface\browser toolbar customization

In the buttons section, when I click the "Add" button, all that happens is the button greys out. "Edit" and "Remove" still open their corresponding dialog boxes.

I have tried replacing gpedit.dll and gpedit.msc from install source files. Neither worked.

I recently installed MS AntiSpyware beta 1. I disabled running it at startup, turned off the BHO checkpoint, shut it down... Still nothing.

Advice, gentlemen, PLEASE!