[QUOTE=debro;2270461]If you can see anything, the video card is working fine.
It’s likely that the dell update software, or windows update have installed a new driver for your nvidia card in the background.
After installing, the drivers have to terminate the running drivers, and then re-initialize the new drivers, and hence the screen flashes a few times as the video card resets/restarts.
There is likely nothing wrong with your machine, it’s just auto-updated and you didn’t realize.
To disable the sleep mode of the computer, get into the windows control panel - power options, and change the screen saver to become active, and sleep mode to not kick in for a few hours or so :p[/QUOTE]
Windows probably updated the driver automatically because the Nvidia is a known issue it seems (on googling)
am furious with Dell for not contacting all customers with this card in their pc’s and warning us - i shelled out $40 on a driver fixing software yesterday
so that’s the second driver update for Nvidia; then, when problems persisted i went to the Dell help programme on my desktop and found yet another Nvidia driver download already waiting there - so that’s three driver updates for the card over three days
when i go into desktop properties on the vista it only shows screen saver as an option, i can’t actually see a ‘hibernation’ control, i was just wildly guessing; last night i clicked on “Nvidia” under properties and the screen blacked out and i had to restart about 3 times by unplugging the pc (there is no restart button on Dell pc’s?), so it is definitely the graphics card which is unhappy. took a deep breath and clicked on Nvidia again today about 2 minutes ago: the screen blacked for 5 seconds [I]then[/I] the Nvidia info page came up, so it looks as if the gremlin is under control if not entirely subdued?
if worries do persist however i was wondering why i don’t just go out and buy a new graphics card?
many thanks for your help