Well, doesn't look like you're playing full screen. Are you using an ATI graphics card? If so, try disabling the Radeon Overlay (Adrenalin) or whatever. I've seen it where it causes this exact problem sometimes.
Also, recently, there has been a bug with Google Chrome and ATI graphics cards with hardware acceleration. If you're noticing it crash while having Chrome open, try disabling hardware acceleration in Chrome.
That's all I've got for you!