Thanks for the Reply
I'm using a Raidmax 530w power supply, additional items are
DVDRW
(2)Barracuda Hard Drives
I think the power is sufficent. I also dont understand why the ram would effect the videocard drivers and catalyst, but it does. As soon as I remove it everything goes back to normal.I also tried just one additional stick for 6gbs of Ram, but the result is the same.