Sapphire ATI Radeon HD 4350 color offset problem

I have a pretty old computer which has an HD 4350 1 GB in it (Dad uses it for his work). This previous Sunday, I opened my card, and gave it to a friend (as he wanted to see of his card was faulty or not). I got it today and when I plugged in the card, all the color changed from the BIOS post screen, to the GRUB menu (should appear violet but appears black). On login to windows I see that red has completely changed to black, and I cannot make any difference between green and yellow. So, I removed the card, and started the computer and this time, all the colors are normal.

So what is the problem and what is the solution?