Need some help here, quality problem.

[xbroken]

Hey hows it going?
While I am not that new to Photoshop I need a bit of help.

A little background, got this new monitor for web designing and graphic work and its causing me some issues, the monitor is the LG L194WTX, with a DVI-D connection into an ASUS EAX1950Pro, problem is I'm not sure if its either my monitor,my graphics card or just Photoshop that is giving me this issue.

The issue is that it seems I don't have enough colors to go around, I can best explain by this picture: http://i10.tinypic.com/81qucmp.png
(This picture is actually good compared to what I usually get)

I don't know how to explain it, but if you can see those lines there that are very annoying, its not smooth, this happens no matter what I do. This occurs with soft brushes as well, it looks horrible. Maybe this is what its supposed to look like, but I never had an issue like this with my 2 year old HP 17" monitor.

Thanks.

 

[poliveira]

Have you the right resolution for that monitor?
It is a common mistake when changing from CRT to LCD try to impose a resolution.
Your new monitor has a 1440 x 900 resolution, any other will not work.
I don't know this is your case, because the img you posted is all black.

 

[yoko]

because the img you posted is all black.

it's actually dark gray to lighter gray gradient