Windows 7 LegalNotice Click-through At Bootup - How To Change Format

My IT shop recently rolled out several hundred new Dells with Windows 7. We've had minimal problems so far.

However, our HR and legal folks are bugging us to change the format of the LegalNotice screen at Win7 startup. All PCs are connected to shared network resources and they insist on the LegalNotice being activated, with an "appropriate use" message displayed and a click-through acknowledgement by the user.

In Win XP, this notice was displayed in a separate dialog box, with the message in a simple black-on-white textbox.

In Win7, the notice now comes up in the center of a blue graphic background, and is in a bluish font that is both smaller (in high screen resolutions, especially) and a harder-to-read typeface, which makes the notice virtually useless.

LegalNotice is controlled by a couple registry settings, but they only allow you to activate it, set the box caption, and set the box text. No other format control is available, e.g., font type, size, weight, textbox background/transparency, etc.

One thought we had was to imbed the notice in the background graphic, but that raised problems with centering and placement due to differing monitor resolution settings. Plus we haven't quite figured out how to replace the default graphic.