I just bought a brand new Dell Tower 5810 and the screen flickers. It flickers randomly and once in a while.
I just got a replacement computer and it also flickers. The old computer got all parts replaced!
I tried both computers with 2 different screens. Both DELL U2711. Same results.
It also displays a strange pattern when the monitors goes to power save. Se picture!
AMD FirePro W5100 (FireGL V) Graphics Adapter [Display adapter]
DELL U2711 [Monitor]