Monitor flashes multiple times bofre finally turning on, HD6970

I have a Sapphire HD6970 video card in my Tower. I use it to display 3 monitors. 1 is a 55" Flat screen via HDMI, The other an NEC 24" via display port, and the last an older Samsung via DVI. For a few months now, when I turn on the computer for the first time, the older samsung monitor will flash on for a split sec [the blue on light will also come on, then go off and it will do this repeatedly for a good 5 minutes sometimes before the monitor just finally turns on. I figured the monitor was going bad. My video card ended up dying after a physical move to florida, and during the time I had the card in RMA, the onboard graphix fro m my motherboard never hd this problem. Now that I have the card back from RMA it is doing it again. I have swapped ports on the montitors and even used the HMDI fr the one flickers and nothing really changes it, [again so i suspect the monitr itself] but then why did it not do it with the onboard card for the lase 2 weeks?]

any ideas? any ways to test the monitor or the card? Furmark works fine, cards stands up to testing.