I have desperately been trying to fix this for 2 whole days, and haven't had any progress. I've literally read around 50 threads on how to fix this, and have had 0 luck.
I don't know if it's drivers, or the monitor, or something different. I only see the lines when windows is running (I do not see the lines in BIOS). The lines somewhat change when I change the refresh rate, however they always come back (and they're always there no matter how small, or large the lines are - they differ).
(It is sorta like a fuzz, but they're lines moving everywhere)
(If I put my desktop background as a darker gray, the lines sorta look darker purple if you pay close attention)
I have provided an image, that hopefully will help you find the solution: http://i47.tinypic.com/161ghep.jpg
(the image is taken from a cell phone because I wasn't sure if the lines would show if I took a screenshot, seeing that I do not know the problem)