Monitor Keeps Blinking To Black

I'm using fedora 10, nvidia legacy drivers, twinview dual monitor setup. My left monitor keeps blinking to black. My right monitor is behaving 100% perfectly. This just started today (or at least today's the first time i ever noticed it. Sometimes it'll go minutes without blinking and something it'll blink three times in 3 seconds. I swapped out the vga cable and it's still happening. I also dusted out my computer today, so it's not dust on the graphics card. How can i figure out if it's happening because of the drivers? Or some kernel upgrade or something like that. Of course, i still have to try another monitor in its place to see if it's the monitor. To be clear, the power isn't going off, the screen just turns black and my right monitor somewhat blinks as if linux is saying - switch to just using this monitor. Then it goes back to displaying what it should be.

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