BUYER BEWARE!!!I hate leaving bad reviews!  And would gladly recant my very poor review if the seller would repair.This computer ran good for about 90 days, then a very big problem began.  I am running it with 3 monitors and both side monitors constantly go to a black screen, for 2-5 seconds then come back on, making it impossible to use for what it is designed for.  VERY disappointing, VERY frustrating and as of now just a huge waist of my money and time!Everything that I have read says that the problem is the mother board and/or the graphics card, The seller should replace both the mother board and graphics card so this machine is indeed what they claim it is.  Right now this is a pile of junk!DO NOT BUY!!!