Double edging around lighter colours

[Cristalle]

I have just recently installed a NVIDIA GeForce FX5200 graphics card and it seems now, the higher the resolution I go, or the higher refresh rate, I get this strange double edging sort of effect around objects or parts of images which are lighter in colour, sort of like a "ghost". It's not exclusive to lighter colours, but you can see it better when it is.

I don't know if you can see it but I'll post it up anyway.

Info: http://www.picoodle.com/view.php?img=/4/5/18/f_Infom_cba6b34.jpg&srv=img28

Have a peek: http://www.picoodle.com/view.php?img=/4/5/18/f_Edgingm_101b210.jpg&srv=img37

Any ideas?

Thank you in advance.

Cris