Viewsonic E70f Problem ?-Switching ?

[Moto Guzzi]

If I login to user, the Monitor screen would switch, sounds like relays switching, but not always, and I got 8x users not on all of them, but display looks the same afterwards as before.

I only noticed this today, did some microsoft updates the other day.

XPSP2 and NVIDIA drivers MX4400

85Hz

Any ideas what happening here.....

 

[Moto Guzzi]

On further investigation I found NVIDIA display drivers of 2003 downloaded by Windows Update and installed. I usually hided this update, but decided to let it go forward-Mistake.

Uninstalled it and installed 2006 latest drivers-No problem