Hello, After installing Windows XP Pro on my intel White iMac (Dual Core) I have noticed some pixels ( I do not know how many but its about 3mm long) that look like they have water thrown on them. I do not know if I am explaining myself clearly. It is a small line that has many colors, it is not easily visible in all backgrounds but once you see it, it is disturbing! So what is this problem> Is it a dead pixel? Stuck Pixel? How can I fix it?