Vista - Monitor blinking issue

hello guys,

I bought a new PC two days ago along with Gforce 9600 GSO 384 mb DDR3 and I am running windows Vista. My problem is that when vista ask for permission to open any program my monitor blinks for a nano second( monitor turns black) otherwise the system is performing good. Is it the problem with the old CRT monitor or some kind of driver problem. My system configuration is written below.

Intel dual core 2.5 Ghrz
DG35Ec Intel mother board
Gforce 9600 GSO 384mD ddr3
windows Vista Home premium Sp1

thanks and waiting for your help.

Hi harmonSmith and welcome to Vista Forums

This is normal for some systems, depending on the hardware and drivers. When the display comes back on, is it dimmed with the UAC dialogue box present? If so, then this is known as the Secure Desktop. This is not the desktop itself, rather it is an image of the desktop which contains no clickable content, save for the UAC dialogue box.

Thanks for the reply. When UAC comes monitor just blink for a second and then it gets back to normal. every thing works fine after that. I checked my friend's system and it has the same effect.

I have this same issue with a new system with UAC causing blinking - very annoying and not normal behavior. Here is my system information.

Motherboard and video - XFX GeForce 8200 w/onboard graphics
CPU - AMD Phenom 9500 Quad Core
OS - Vista Home Premium 64 bit SP1

Any help is appreciated, thanks.

You can prevent this from happening by following the instructions in the following Tutorial: User Account Control (UAC) - Blacking Out of Screen However, take careful heed of the warning given at the beginning.