computer monitor just goes to sleep

[TinStar]

I have 2 monitors hooked up to 1 video card.  One is connected via HDMI and the other is connected via DVI.  On a restart(stupid windows updates...) the monitor connected DVI just goes into sleep mode.  If I unplug that monitor from the video card it comes on and gives me the "cable is disconnected" message and then I plug it back in, that goes away and it immediately goes to sleep...  Also, my computer thinks the monitor is running because I initially had my windows open on that monitor and I could drag my mouse off the display that's working and then drag the windows back over...