RE: display turns into a screen of small shimmering colored patterns and the computer ceases to respond to any command.
I'm totally confused...!!
You said you connected the monitor from the 4700c to a different PC and "after 20 minutes or so, the screen went blank white ". That made me think the monitor is bad.
Now you're saying you connected the monitor from the other PC to the 4700c and "it is the same behavior".
So how can that be? Either the problem goes with the monitor or it stays with the 4700c. Unless you're just totally unlucky and there are problems with BOTH the 4700c and the monitor.
Forum Member since 2004
I am not a Dell employee