Problem [Green Dots}

already tried the option last driver? it takes the last driver before the 1 you use now and maybe it fixed then

Your grafical card is bad.
Is it overclocked? -> Remove the overclock.
If not, it's just dying, I'm afraid.

I think it could be dying memory on your GPU. If it was overclocked, it's probably already too late to do anything.

Try to underclock your graphics card, use "MSI Afterburner" and try to underclock your card to this values 855 MHz Core Clock, Shader Clock to 1710 MHz and keep Memory Clock to at 2004. However, you can experiment to see if you really need to go down to those values or you can still keep them near their original OC values, but be careful not to go above factory OC values or you might fry your graphics card, good luck.

EDIT: If it happens that underclocking doesn't help you, you can restore OC values to what they were since there's no point keeping card underclocked if it doesn't solve the issue.

You have this problem before? Might want to roll back your drivers.

okay, try this then: close all programs not related to the OS , antivirus and such. some games/drivers/cards have problems if you have any kind of layer software running, like rainmeter or rocketdock. sadly other programs like MSN messenger and such use toaster-like popups that could trigger the problem as well.