Bought this PC for my son 2 yrs ago. Worked fine first yearl. Red started going off occasionally a few months ago. Bought 3 different graphics card that were ALL compatible. The onboard, integrated Nvidia would never disable, although 5 different PC repairmen tried. Updated bios, everything. Would NEVER work. So now we are stuck with a 2 yr old system with no red! This problem is all over the internet, yet Gateway refuses to acknowledge it through any kind of recall or repair/replacement of the motherboard.