If you're not satisfied, you should return it to the store where you bought it. Yet: did you try out the settings? Flatron uses OSD, and has buttons for the shape of what you see, including convex/concave. Also, I don't know where you live, but I have a three year guarantee on site. And they are very friendly over here.
The monitor has several advantages as you don't have those irritating wires, and it also has a very good contrast. It's only negative point I ever came up with is its sensitivity to a bit of moir? (interference patterns), but at times the image just implodes and then rebuilds. That is due to getting rid of Gauss. (err... ;\

). Degaussing means demagnetising.
Yet always try to be a diffcult customer: money is energy, and you invest part of your life in something. You always and under all circumstances merit the very best your money can buy. The salesman wants your money/energy, and will evt try out his legion of tricks on you. Just keep your one goal before your mental eye: how can I invest my money so my life's quality becomes better?
Good luck!