I got a new GTX 560 ti about a month ago and have had a wide variety of problems with it. After about two weeks of trying to fix it, trying different drivers and clock settings, I gave up and re-installed windows. After that, the problems continued but I was able to start the computer and use it for work, so I just ignored the issues. Now, the problems are rendering my computer unusable again, so I desperately need help. My step father (who worked in tech support) and I have tried everything we can think of, taken it to a shop to have them fix it twice, and still, nothing has worked. The problems include the following: At startup, when the computer tries to run Windows, the screen turns black, then displays a black screen covered with a varying pattern of white "=" signs, occasionally turns black again, then shows the pattern again. With the 275.33 driver, it will sometimes successfully start windows after doing this for about 10 minutes. With all other drivers that I've tried, it will simply show the white "=" signs and never start. When it does successfully start Windows, some of the time it will work perfectly, but other times it will have the problems listed below. Display freezes randomly when I mouse over some links or buttons. Loading web pages sometimes causes the display to freeze. Loading a Youtube video causes an error like "The Windows Kernel Mode driver 275.33 has stopped responding and has recovered" about half of the time. Strangely, it can run all of my games, even the more graphically intensive games that I own like Assassin's Creed 2, for hours without any issues. I've been struggling with this for weeks now, and would really like to be done with it. None of my searches have found anyone with problems exactly like mine, and nothing I've tried has worked. So, hopefully you guys can help me.