Dell 2007FP Flickering, switched montiors and problem still exists

[Scotty_12]

I just hooked the monitor that was originally flickering up to another PC, and it is working fine. So is this a settings issue with the new pc/vista? Or is it a hardware issue with the new computer?

Should I return the computer (linked above from futureshop) and g et a different (perhaps custom built) pc somewhere to avoid this problem?

The last PC I had was custom built, and I have had no problems with it, but I wanted to upgrade to 3 GB ram and the quad core processor, and my builder was on 3 weeks of holidays (left the day before I decided to buy a new pc, and I was impatient)