I'm having the same problem. Figured I'd post in this thread instead of making another one. I had my power supply replaced yesterday, and since then my monitor hasn't been displaying anything when I connect it to the graphics card. It works fine when I connect it to the back of the tower, but my computer seems slower, especially when it comes to games. The fan on the card still works, so I assume that means the card itself isn't broken, maybe? Only thing I could think of was the driver
, but that's installed and up-to-date.