Vista - Black screen before UAC message

I work with... the same Vista Business 32-bit, on a Pentium 4 at 3GHz, with
2GB RAM and a GeForce 7600 GT with 256 MB RAM.
Right before the UAC confirmation message pops out when trying to launch a
program that Vista keeps on considering "unidentified", the screen goes
black (about 1.5 seconds the first time in a session, then about 0.5 sec).
Can't you Microsoft get back to the XP message, put it on top of other
windows or something and keep it there until I give my confirmation ? Must
you black out the entire screen just to get my attention ? The XP
confirmation message did this perfectly. It is NOT a problem with the video
card, because this is the second I work under with this Vista, and on the
previous one (an FX5200) this happened identically.
Oh, and some more on this - It is obvious that Vista DOES NOT keep count of
the versions or other identifiers for the programs I give UAC the
confirmation to launch them. So, I am prompted with the same confirmation
message about _still_ "unidentified" programs, although I've told it a
hundred times before that yes, I know that program well and know where it's
coming from.
If these pestering things weren't to happen, I might have believed that UAC
is good and does its job delicately, somewhere in the background; but the
black screen and the confirmation message spoil all the fun - that's why
some people hate the UAC and disable it. Did anyone at Microsoft possess
some user psychology notions ? Or even used a Vista system with UAC enabled,
like a simple user, for months in a row, without getting annoyed ?

The black screen is a safety feature - Windows has switched to a secure
desktop so that the dialog box cannot interact with the desktop or other
open programs. This is a feature that can be turned off in the Registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop

1 for on, 0 for off.

You can also change this using SECPOL.MSC if you have Vista in either the
Ultimate or Business editions.

--
Richard G. Harper [MVP Shell/User] rgharper@xxxxxx
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"Communikator" <mename@xxxxxx> wrote in message
news:%23cCJFar8HHA.3940@xxxxxx

you might add that turning this off comprimizes the security of the
workstation since "secure desktop" is not secure afterwards


"Richard G. Harper" <rgharper@xxxxxx> wrote in message
news:utcRC7s8HHA.1208@xxxxxx