Right now, I would suspect either the card, or the display, before I would the OS - unless you can run it in another OS and the miscreant pixels go away. See if you can find a live-CD of Linux or something, and see if the pixels are still stuck in X-windows. If you aren't comfy with that, then try booting into safe mode, which uses the standard VGA driver.
Basically to use this method, go to ubuntu.com, and download the latest desktop version of ubuntu and burn it on a CD, and boot off of it. If the pixels are still there, then the problem is with something else.
If the pixels are always in the same place, I would start with the LCD panel. More than likely, you have stuck on pixels. The best way to test is to display a pure black image, and look for pixels that are emitting. (They will show up very nicely against black). Follow up by displaying a pure white image, and look for pixels that are dark. Those are "dead" pixels. Note, they may not be black if only one color is going out. For example, if the blue is going, but the red and green are fine, you will get yellow, etc. You can verify by displaying pure blue, green, and red images on the panel - and looking for black spots.
That is what I meant by "LCD may be going byebye", was just seeing if there was a driver problem.
Summary of things to try:
1.Update drivers ( may eliminate card as problem source if this method doesn't resolve problem)
2.Try booting off of another OS like Ubuntu, which can boot off of the CD (eliminates Win7 as problem source if this method doesn't resolve problem.
3. Try displaying red, green, and blue images on the screen and seeing if. I can post HTML code to display these colors in a browser, just let me write up the code (eliminates monitor as problem source if this method doesn't resolve problem)
If the green and red pixels move, then scrap steps 2 and 3, as you probably have a card problem of some sort (although I don't think you would have done any overclocking...)
- JoelbX
