Can't say I have heard a problem like this, but it sounds like it isn't a problem with Windows 7 and more of a hardware issue.
Have you tried adjusting the brightness of the screen?
If I were you I would exercise the warranty that came with your machine.
This is an extreme problem in my new samsung machine running windows 7.
I can hardly see any text and it seems to fade.
There is no way to change any of the colors ie to make
the backgrounds white so the text will show.
And how can I turn my text bold all the time, incoming.
This also seems to be a problem here on this forum.
The text is just about impossible to read.

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