New LED monitor is fuzzy!

I just bought a new AOS 23" LED monitor from best buy. Plugged it in, everything adjusted fine, but everything is slightly fuzzy. After looking closer I see everything on the screen, folders, dock items, background image, and curser are mirrored several times behind and to the right of the screen image. Resulting in the fuzzy look. I took a screenshot but it looks fine on this computer, hoping it's just a setting I can fix? Also I was going to get a dvi cable for it, I currently have it hooked up with vga, maybe that's the problem? Anyway... Thanks for any help!!!!