problem in resolution

[chus]

Hello I have a problem in my Hackintosh in OS X Lion - Mavericks maybe someone can help me

I do not quite know how to explain this but the resolution of the Monitor is curved style I can not get a flat resolution I'll post some pictures

My Monitor is equal to this
http://img.2dehands.be/f/preview/187...0i-monitor.jpg

My Graphics card NVIDIA GeForce GTX 650 Ti BOOST 2048 MB


http://s29.postimg.org/whgbbmb86/image.jpg

http://s29.postimg.org/n5yuseo2f/image.png

http://s8.postimg.org/r0tzhow50/image.jpg

anyone know how to solve it thanks

 

[clipper99]

I can't see a problem?!

What is the native resolution of your monitor?

 

[chus]

1600 x 900 60 Hertz

 

[chus]

I installed 18020 Display mode I should have installed ?